Finding the Fourth Proportional to 112,529.52, 155,285.71 and 64,772.73

Step by Step Solution

1. Step 1: Write the proportion equation
   112,529.52 : 155,285.71 = 64,772.73 : x
2. Step 2: Convert to fraction form
   112,529.52/155,285.71 = 64,772.73/x
3. Step 3: Cross multiply
   112,529.52x = 155,285.71 × 64,772.73
4. Step 4: Simplify right side
   112,529.52x = 10,058,279,204.76
5. Step 5: Solve for x
   x = 10,058,279,204.76/112,529.52
6. Step 6: Final answer
   x = 89,383.47