Finding the Fourth Proportional to 90,243.50, 124,455.22 and 58,379.18

Step by Step Solution

1. Step 1: Write the proportion equation
   90,243.50 : 124,455.22 = 58,379.18 : x
2. Step 2: Convert to fraction form
   90,243.50/124,455.22 = 58,379.18/x
3. Step 3: Cross multiply
   90,243.50x = 124,455.22 × 58,379.18
4. Step 4: Simplify right side
   90,243.50x = 7,265,592,922.10
5. Step 5: Solve for x
   x = 7,265,592,922.10/90,243.50
6. Step 6: Final answer
   x = 80,510.99