Finding the Fourth Proportional to 117,120,969.24, 161,626,952.88 and 64,913,375.52

Step by Step Solution

1. Step 1: Write the proportion equation
   117,120,969.24 : 161,626,952.88 = 64,913,375.52 : x
2. Step 2: Convert to fraction form
   117,120,969.24/161,626,952.88 = 64,913,375.52/x
3. Step 3: Cross multiply
   117,120,969.24x = 161,626,952.88 × 64,913,375.52
4. Step 4: Simplify right side
   117,120,969.24x = 10,491,751,086,452,786
5. Step 5: Solve for x
   x = 10,491,751,086,452,786/117,120,969.24
6. Step 6: Final answer
   x = 89,580,466.71