Finding the Fourth Proportional to 90,870.24, 136,259.28 and 41,580

Step by Step Solution

1. Step 1: Write the proportion equation
   90,870.24 : 136,259.28 = 41,580 : x
2. Step 2: Convert to fraction form
   90,870.24/136,259.28 = 41,580/x
3. Step 3: Cross multiply
   90,870.24x = 136,259.28 × 41,580
4. Step 4: Simplify right side
   90,870.24x = 5,665,660,862.40
5. Step 5: Solve for x
   x = 5,665,660,862.40/90,870.24
6. Step 6: Final answer
   x = 62,348.91