Finding the Fourth Proportional to 59,231.16, 81,686.07 and 49,143.62

Step by Step Solution

1. Step 1: Write the proportion equation
   59,231.16 : 81,686.07 = 49,143.62 : x
2. Step 2: Convert to fraction form
   59,231.16/81,686.07 = 49,143.62/x
3. Step 3: Cross multiply
   59,231.16x = 81,686.07 × 49,143.62
4. Step 4: Simplify right side
   59,231.16x = 4,014,349,387.59
5. Step 5: Solve for x
   x = 4,014,349,387.59/59,231.16
6. Step 6: Final answer
   x = 67,774.28