Finding the Fourth Proportional to 35,311,086.72, 48,727,744.32 and 20,628,113.28

Step by Step Solution

1. Step 1: Write the proportion equation
   35,311,086.72 : 48,727,744.32 = 20,628,113.28 : x
2. Step 2: Convert to fraction form
   35,311,086.72/48,727,744.32 = 20,628,113.28/x
3. Step 3: Cross multiply
   35,311,086.72x = 48,727,744.32 × 20,628,113.28
4. Step 4: Simplify right side
   35,311,086.72x = 1,005,161,429,711,836.62
5. Step 5: Solve for x
   x = 1,005,161,429,711,836.62/35,311,086.72
6. Step 6: Final answer
   x = 28,465,887.72