Finding the Fourth Proportional to 42,154,797.49, 58,155,807.17 and 28,220,641.96

Step by Step Solution

1. Step 1: Write the proportion equation
   42,154,797.49 : 58,155,807.17 = 28,220,641.96 : x
2. Step 2: Convert to fraction form
   42,154,797.49/58,155,807.17 = 28,220,641.96/x
3. Step 3: Cross multiply
   42,154,797.49x = 58,155,807.17 × 28,220,641.96
4. Step 4: Simplify right side
   42,154,797.49x = 1,641,194,212,114,208.50
5. Step 5: Solve for x
   x = 1,641,194,212,114,208.50/42,154,797.49
6. Step 6: Final answer
   x = 38,932,560.70