Finding the Fourth Proportional to 90,291.34, 124,560.69 and 58,470.49

Step by Step Solution

1. Step 1: Write the proportion equation
   90,291.34 : 124,560.69 = 58,470.49 : x
2. Step 2: Convert to fraction form
   90,291.34/124,560.69 = 58,470.49/x
3. Step 3: Cross multiply
   90,291.34x = 124,560.69 × 58,470.49
4. Step 4: Simplify right side
   90,291.34x = 7,283,124,579.04
5. Step 5: Solve for x
   x = 7,283,124,579.04/90,291.34
6. Step 6: Final answer
   x = 80,662.49