Finding the Fourth Proportional to 117,386,357.47, 161,990,090.93 and 65,174,050.69

Step by Step Solution

1. Step 1: Write the proportion equation
   117,386,357.47 : 161,990,090.93 = 65,174,050.69 : x
2. Step 2: Convert to fraction form
   117,386,357.47/161,990,090.93 = 65,174,050.69/x
3. Step 3: Cross multiply
   117,386,357.47x = 161,990,090.93 × 65,174,050.69
4. Step 4: Simplify right side
   117,386,357.47x = 10,557,550,397,549,530
5. Step 5: Solve for x
   x = 10,557,550,397,549,530/117,386,357.47
6. Step 6: Final answer
   x = 89,938,478.59