Finding the Fourth Proportional to 12,156.52, 18,234.74 and 3,948.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,156.52 : 18,234.74 = 3,948.52 : x
2. Step 2: Convert to fraction form
   12,156.52/18,234.74 = 3,948.52/x
3. Step 3: Cross multiply
   12,156.52x = 18,234.74 × 3,948.52
4. Step 4: Simplify right side
   12,156.52x = 72,000,235.58
5. Step 5: Solve for x
   x = 72,000,235.58/12,156.52
6. Step 6: Final answer
   x = 5,922.77