Finding the Fourth Proportional to 58,531.98, 80,781.29 and 35,874.20

Step by Step Solution

1. Step 1: Write the proportion equation
   58,531.98 : 80,781.29 = 35,874.20 : x
2. Step 2: Convert to fraction form
   58,531.98/80,781.29 = 35,874.20/x
3. Step 3: Cross multiply
   58,531.98x = 80,781.29 × 35,874.20
4. Step 4: Simplify right side
   58,531.98x = 2,897,964,310.83
5. Step 5: Solve for x
   x = 2,897,964,310.83/58,531.98
6. Step 6: Final answer
   x = 49,510.78