Finding the Fourth Proportional to 12,151.90, 16,764.69 and 7,438.92

Step by Step Solution

1. Step 1: Write the proportion equation
   12,151.90 : 16,764.69 = 7,438.92 : x
2. Step 2: Convert to fraction form
   12,151.90/16,764.69 = 7,438.92/x
3. Step 3: Cross multiply
   12,151.90x = 16,764.69 × 7,438.92
4. Step 4: Simplify right side
   12,151.90x = 124,711,187.73
5. Step 5: Solve for x
   x = 124,711,187.73/12,151.90
6. Step 6: Final answer
   x = 10,262.69