Finding the Fourth Proportional to 42,154,816.39, 58,155,833.25 and 28,220,660.84

Step by Step Solution

1. Step 1: Write the proportion equation
   42,154,816.39 : 58,155,833.25 = 28,220,660.84 : x
2. Step 2: Convert to fraction form
   42,154,816.39/58,155,833.25 = 28,220,660.84/x
3. Step 3: Cross multiply
   42,154,816.39x = 58,155,833.25 × 28,220,660.84
4. Step 4: Simplify right side
   42,154,816.39x = 1,641,196,046,161,234.50
5. Step 5: Solve for x
   x = 1,641,196,046,161,234.50/42,154,816.39
6. Step 6: Final answer
   x = 38,932,586.76