Finding the Fourth Proportional to 12,123.48, 16,726.50 and 7,341.90

Step by Step Solution

1. Step 1: Write the proportion equation
   12,123.48 : 16,726.50 = 7,341.90 : x
2. Step 2: Convert to fraction form
   12,123.48/16,726.50 = 7,341.90/x
3. Step 3: Cross multiply
   12,123.48x = 16,726.50 × 7,341.90
4. Step 4: Simplify right side
   12,123.48x = 122,804,290.35
5. Step 5: Solve for x
   x = 122,804,290.35/12,123.48
6. Step 6: Final answer
   x = 10,129.46