Finding the Fourth Proportional to 105,127.20, 145,089.43 and 59,796.43

Step by Step Solution

1. Step 1: Write the proportion equation
   105,127.20 : 145,089.43 = 59,796.43 : x
2. Step 2: Convert to fraction form
   105,127.20/145,089.43 = 59,796.43/x
3. Step 3: Cross multiply
   105,127.20x = 145,089.43 × 59,796.43
4. Step 4: Simplify right side
   105,127.20x = 8,675,829,432.52
5. Step 5: Solve for x
   x = 8,675,829,432.52/105,127.20
6. Step 6: Final answer
   x = 82,526.97