Finding the Fourth Proportional to 51,542,050.72, 71,128,171.92 and 28,339,549.60

Step by Step Solution

1. Step 1: Write the proportion equation
   51,542,050.72 : 71,128,171.92 = 28,339,549.60 : x
2. Step 2: Convert to fraction form
   51,542,050.72/71,128,171.92 = 28,339,549.60/x
3. Step 3: Cross multiply
   51,542,050.72x = 71,128,171.92 × 28,339,549.60
4. Step 4: Simplify right side
   51,542,050.72x = 2,015,740,356,084,167.50
5. Step 5: Solve for x
   x = 2,015,740,356,084,167.50/51,542,050.72
6. Step 6: Final answer
   x = 39,108,656.48