Finding the Fourth Proportional to 71,759.22, 99,018.81 and 39,925.86

Step by Step Solution

1. Step 1: Write the proportion equation
   71,759.22 : 99,018.81 = 39,925.86 : x
2. Step 2: Convert to fraction form
   71,759.22/99,018.81 = 39,925.86/x
3. Step 3: Cross multiply
   71,759.22x = 99,018.81 × 39,925.86
4. Step 4: Simplify right side
   71,759.22x = 3,953,411,145.43
5. Step 5: Solve for x
   x = 3,953,411,145.43/71,759.22
6. Step 6: Final answer
   x = 55,092.73