Finding the Fourth Proportional to 105,146.12, 145,088.88 and 59,829.86

Step by Step Solution

1. Step 1: Write the proportion equation
   105,146.12 : 145,088.88 = 59,829.86 : x
2. Step 2: Convert to fraction form
   105,146.12/145,088.88 = 59,829.86/x
3. Step 3: Cross multiply
   105,146.12x = 145,088.88 × 59,829.86
4. Step 4: Simplify right side
   105,146.12x = 8,680,647,377.96
5. Step 5: Solve for x
   x = 8,680,647,377.96/105,146.12
6. Step 6: Final answer
   x = 82,557.94