Finding the Fourth Proportional to 105,137.52, 145,084.72 and 59,811.24

Step by Step Solution

1. Step 1: Write the proportion equation
   105,137.52 : 145,084.72 = 59,811.24 : x
2. Step 2: Convert to fraction form
   105,137.52/145,084.72 = 59,811.24/x
3. Step 3: Cross multiply
   105,137.52x = 145,084.72 × 59,811.24
4. Step 4: Simplify right side
   105,137.52x = 8,677,697,008.25
5. Step 5: Solve for x
   x = 8,677,697,008.25/105,137.52
6. Step 6: Final answer
   x = 82,536.63