Finding the Fourth Proportional to 78,162.96, 117,080.40 and 61,443.34

Step by Step Solution

1. Step 1: Write the proportion equation
   78,162.96 : 117,080.40 = 61,443.34 : x
2. Step 2: Convert to fraction form
   78,162.96/117,080.40 = 61,443.34/x
3. Step 3: Cross multiply
   78,162.96x = 117,080.40 × 61,443.34
4. Step 4: Simplify right side
   78,162.96x = 7,193,810,824.54
5. Step 5: Solve for x
   x = 7,193,810,824.54/78,162.96
6. Step 6: Final answer
   x = 92,036.06