Finding the Fourth Proportional to 105,132.52, 145,061.22 and 60,411.88

Step by Step Solution

1. Step 1: Write the proportion equation
   105,132.52 : 145,061.22 = 60,411.88 : x
2. Step 2: Convert to fraction form
   105,132.52/145,061.22 = 60,411.88/x
3. Step 3: Cross multiply
   105,132.52x = 145,061.22 × 60,411.88
4. Step 4: Simplify right side
   105,132.52x = 8,763,421,015.29
5. Step 5: Solve for x
   x = 8,763,421,015.29/105,132.52
6. Step 6: Final answer
   x = 83,355.95