Finding the Fourth Proportional to 30,391.50, 41,941.91 and 17,820.30

Step by Step Solution

1. Step 1: Write the proportion equation
   30,391.50 : 41,941.91 = 17,820.30 : x
2. Step 2: Convert to fraction form
   30,391.50/41,941.91 = 17,820.30/x
3. Step 3: Cross multiply
   30,391.50x = 41,941.91 × 17,820.30
4. Step 4: Simplify right side
   30,391.50x = 747,417,418.77
5. Step 5: Solve for x
   x = 747,417,418.77/30,391.50
6. Step 6: Final answer
   x = 24,592.98