Finding the Fourth Proportional to 105,132.27, 145,060.88 and 60,411.63

Step by Step Solution

1. Step 1: Write the proportion equation
   105,132.27 : 145,060.88 = 60,411.63 : x
2. Step 2: Convert to fraction form
   105,132.27/145,060.88 = 60,411.63/x
3. Step 3: Cross multiply
   105,132.27x = 145,060.88 × 60,411.63
4. Step 4: Simplify right side
   105,132.27x = 8,763,363,907.98
5. Step 5: Solve for x
   x = 8,763,363,907.98/105,132.27
6. Step 6: Final answer
   x = 83,355.60