Finding the Fourth Proportional to 25,690.52, 38,499.55 and 12,167.34

Step by Step Solution

1. Step 1: Write the proportion equation
   25,690.52 : 38,499.55 = 12,167.34 : x
2. Step 2: Convert to fraction form
   25,690.52/38,499.55 = 12,167.34/x
3. Step 3: Cross multiply
   25,690.52x = 38,499.55 × 12,167.34
4. Step 4: Simplify right side
   25,690.52x = 468,437,116.63
5. Step 5: Solve for x
   x = 468,437,116.63/25,690.52
6. Step 6: Final answer
   x = 18,233.85