Finding the Fourth Proportional to 22,518.47, 31,079.34 and 13,092.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,518.47 : 31,079.34 = 13,092.50 : x
2. Step 2: Convert to fraction form
   22,518.47/31,079.34 = 13,092.50/x
3. Step 3: Cross multiply
   22,518.47x = 31,079.34 × 13,092.50
4. Step 4: Simplify right side
   22,518.47x = 406,906,258.95
5. Step 5: Solve for x
   x = 406,906,258.95/22,518.47
6. Step 6: Final answer
   x = 18,069.89