Finding the Fourth Proportional to 112,472,136.08, 155,149,086.28 and 65,423,909.78

Step by Step Solution

1. Step 1: Write the proportion equation
   112,472,136.08 : 155,149,086.28 = 65,423,909.78 : x
2. Step 2: Convert to fraction form
   112,472,136.08/155,149,086.28 = 65,423,909.78/x
3. Step 3: Cross multiply
   112,472,136.08x = 155,149,086.28 × 65,423,909.78
4. Step 4: Simplify right side
   112,472,136.08x = 10,150,459,823,232,156
5. Step 5: Solve for x
   x = 10,150,459,823,232,156/112,472,136.08
6. Step 6: Final answer
   x = 90,248,662.26