Finding the Fourth Proportional to 143,360.57, 215,123.78 and 59,105.03

Step by Step Solution

1. Step 1: Write the proportion equation
   143,360.57 : 215,123.78 = 59,105.03 : x
2. Step 2: Convert to fraction form
   143,360.57/215,123.78 = 59,105.03/x
3. Step 3: Cross multiply
   143,360.57x = 215,123.78 × 59,105.03
4. Step 4: Simplify right side
   143,360.57x = 12,714,897,470.61
5. Step 5: Solve for x
   x = 12,714,897,470.61/143,360.57
6. Step 6: Final answer
   x = 88,691.73