Finding the Fourth Proportional to 90,574.89, 124,906.47 and 58,276.53

Step by Step Solution

1. Step 1: Write the proportion equation
   90,574.89 : 124,906.47 = 58,276.53 : x
2. Step 2: Convert to fraction form
   90,574.89/124,906.47 = 58,276.53/x
3. Step 3: Cross multiply
   90,574.89x = 124,906.47 × 58,276.53
4. Step 4: Simplify right side
   90,574.89x = 7,279,115,646.15
5. Step 5: Solve for x
   x = 7,279,115,646.15/90,574.89
6. Step 6: Final answer
   x = 80,365.71