Finding the Fourth Proportional to 117,258,744,109.63, 161,808,186,379.25 and 65,807,367,015.13

Step by Step Solution

1. Step 1: Write the proportion equation
   117,258,744,109.63 : 161,808,186,379.25 = 65,807,367,015.13 : x
2. Step 2: Convert to fraction form
   117,258,744,109.63/161,808,186,379.25 = 65,807,367,015.13/x
3. Step 3: Cross multiply
   117,258,744,109.63x = 161,808,186,379.25 × 65,807,367,015.13
4. Step 4: Simplify right side
   117,258,744,109.63x = 10,648,170,707,111,863,386,112
5. Step 5: Solve for x
   x = 10,648,170,707,111,863,386,112/117,258,744,109.63
6. Step 6: Final answer
   x = 90,809,182,615.47