Finding the Fourth Proportional to 71,417.91, 98,557.71 and 39,155.56

Step by Step Solution

1. Step 1: Write the proportion equation
   71,417.91 : 98,557.71 = 39,155.56 : x
2. Step 2: Convert to fraction form
   71,417.91/98,557.71 = 39,155.56/x
3. Step 3: Cross multiply
   71,417.91x = 98,557.71 × 39,155.56
4. Step 4: Simplify right side
   71,417.91x = 3,859,082,327.37
5. Step 5: Solve for x
   x = 3,859,082,327.37/71,417.91
6. Step 6: Final answer
   x = 54,035.22