Finding the Fourth Proportional to 22,317.52, 30,803.72 and 12,884.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,317.52 : 30,803.72 = 12,884.72 : x
2. Step 2: Convert to fraction form
   22,317.52/30,803.72 = 12,884.72/x
3. Step 3: Cross multiply
   22,317.52x = 30,803.72 × 12,884.72
4. Step 4: Simplify right side
   22,317.52x = 396,897,307.16
5. Step 5: Solve for x
   x = 396,897,307.16/22,317.52
6. Step 6: Final answer
   x = 17,784.11