Finding the Fourth Proportional to 72,082,206.72, 99,475,931.52 and 39,487,161.60

Step by Step Solution

1. Step 1: Write the proportion equation
   72,082,206.72 : 99,475,931.52 = 39,487,161.60 : x
2. Step 2: Convert to fraction form
   72,082,206.72/99,475,931.52 = 39,487,161.60/x
3. Step 3: Cross multiply
   72,082,206.72x = 99,475,931.52 × 39,487,161.60
4. Step 4: Simplify right side
   72,082,206.72x = 3,928,022,183,240,773.50
5. Step 5: Solve for x
   x = 3,928,022,183,240,773.50/72,082,206.72
6. Step 6: Final answer
   x = 54,493,644.99