Finding the Fourth Proportional to 162,648.57, 224,434.89 and 91,010.55

Step by Step Solution

1. Step 1: Write the proportion equation
   162,648.57 : 224,434.89 = 91,010.55 : x
2. Step 2: Convert to fraction form
   162,648.57/224,434.89 = 91,010.55/x
3. Step 3: Cross multiply
   162,648.57x = 224,434.89 × 91,010.55
4. Step 4: Simplify right side
   162,648.57x = 20,425,942,778.09
5. Step 5: Solve for x
   x = 20,425,942,778.09/162,648.57
6. Step 6: Final answer
   x = 125,583.29