Finding the Fourth Proportional to 22,854.52, 31,538.82 and 12,918.52

Step by Step Solution

1. Step 1: Write the proportion equation
   22,854.52 : 31,538.82 = 12,918.52 : x
2. Step 2: Convert to fraction form
   22,854.52/31,538.82 = 12,918.52/x
3. Step 3: Cross multiply
   22,854.52x = 31,538.82 × 12,918.52
4. Step 4: Simplify right side
   22,854.52x = 407,434,876.95
5. Step 5: Solve for x
   x = 407,434,876.95/22,854.52
6. Step 6: Final answer
   x = 17,827.32