Finding the Fourth Proportional to 64,824.12, 89,433.18 and 43,569.72

Step by Step Solution

1. Step 1: Write the proportion equation
   64,824.12 : 89,433.18 = 43,569.72 : x
2. Step 2: Convert to fraction form
   64,824.12/89,433.18 = 43,569.72/x
3. Step 3: Cross multiply
   64,824.12x = 89,433.18 × 43,569.72
4. Step 4: Simplify right side
   64,824.12x = 3,896,578,611.31
5. Step 5: Solve for x
   x = 3,896,578,611.31/64,824.12
6. Step 6: Final answer
   x = 60,110.01