Finding the Fourth Proportional to 157,443.02, 217,263.15 and 89,450.56

Step by Step Solution

1. Step 1: Write the proportion equation
   157,443.02 : 217,263.15 = 89,450.56 : x
2. Step 2: Convert to fraction form
   157,443.02/217,263.15 = 89,450.56/x
3. Step 3: Cross multiply
   157,443.02x = 217,263.15 × 89,450.56
4. Step 4: Simplify right side
   157,443.02x = 19,434,310,434.86
5. Step 5: Solve for x
   x = 19,434,310,434.86/157,443.02
6. Step 6: Final answer
   x = 123,437.10