Finding the Fourth Proportional to 118,361,691.48, 163,332,086.22 and 65,435,228.05

Step by Step Solution

1. Step 1: Write the proportion equation
   118,361,691.48 : 163,332,086.22 = 65,435,228.05 : x
2. Step 2: Convert to fraction form
   118,361,691.48/163,332,086.22 = 65,435,228.05/x
3. Step 3: Cross multiply
   118,361,691.48x = 163,332,086.22 × 65,435,228.05
4. Step 4: Simplify right side
   118,361,691.48x = 10,687,672,309,687,962
5. Step 5: Solve for x
   x = 10,687,672,309,687,962/118,361,691.48
6. Step 6: Final answer
   x = 90,296,718.27