Finding the Fourth Proportional to 22,587.52, 31,169.98 and 12,378.52

Step by Step Solution

1. Step 1: Write the proportion equation
   22,587.52 : 31,169.98 = 12,378.52 : x
2. Step 2: Convert to fraction form
   22,587.52/31,169.98 = 12,378.52/x
3. Step 3: Cross multiply
   22,587.52x = 31,169.98 × 12,378.52
4. Step 4: Simplify right side
   22,587.52x = 385,838,220.83
5. Step 5: Solve for x
   x = 385,838,220.83/22,587.52
6. Step 6: Final answer
   x = 17,081.92