Finding the Fourth Proportional to 105,337,053.72, 145,365,346.71 and 58,928,082.66

Step by Step Solution

1. Step 1: Write the proportion equation
   105,337,053.72 : 145,365,346.71 = 58,928,082.66 : x
2. Step 2: Convert to fraction form
   105,337,053.72/145,365,346.71 = 58,928,082.66/x
3. Step 3: Cross multiply
   105,337,053.72x = 145,365,346.71 × 58,928,082.66
4. Step 4: Simplify right side
   105,337,053.72x = 8,566,101,166,826,439
5. Step 5: Solve for x
   x = 8,566,101,166,826,439/105,337,053.72
6. Step 6: Final answer
   x = 81,320,872.99