Finding the Fourth Proportional to 59,686.98, 89,526.42 and 43,077.12

Step by Step Solution

1. Step 1: Write the proportion equation
   59,686.98 : 89,526.42 = 43,077.12 : x
2. Step 2: Convert to fraction form
   59,686.98/89,526.42 = 43,077.12/x
3. Step 3: Cross multiply
   59,686.98x = 89,526.42 × 43,077.12
4. Step 4: Simplify right side
   59,686.98x = 3,856,540,337.51
5. Step 5: Solve for x
   x = 3,856,540,337.51/59,686.98
6. Step 6: Final answer
   x = 64,612.76