Finding the Fourth Proportional to 64,553.61, 89,114.31 and 43,079.09

Step by Step Solution

1. Step 1: Write the proportion equation
   64,553.61 : 89,114.31 = 43,079.09 : x
2. Step 2: Convert to fraction form
   64,553.61/89,114.31 = 43,079.09/x
3. Step 3: Cross multiply
   64,553.61x = 89,114.31 × 43,079.09
4. Step 4: Simplify right side
   64,553.61x = 3,838,963,380.78
5. Step 5: Solve for x
   x = 3,838,963,380.78/64,553.61
6. Step 6: Final answer
   x = 59,469.38