Finding the Fourth Proportional to 59,656.72, 89,290.37 and 43,857.57

Step by Step Solution

1. Step 1: Write the proportion equation
   59,656.72 : 89,290.37 = 43,857.57 : x
2. Step 2: Convert to fraction form
   59,656.72/89,290.37 = 43,857.57/x
3. Step 3: Cross multiply
   59,656.72x = 89,290.37 × 43,857.57
4. Step 4: Simplify right side
   59,656.72x = 3,916,058,348.13
5. Step 5: Solve for x
   x = 3,916,058,348.13/59,656.72
6. Step 6: Final answer
   x = 65,643.21