Finding the Fourth Proportional to 12,155.08, 16,773.06 and 7,438.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,155.08 : 16,773.06 = 7,438.72 : x
2. Step 2: Convert to fraction form
   12,155.08/16,773.06 = 7,438.72/x
3. Step 3: Cross multiply
   12,155.08x = 16,773.06 × 7,438.72
4. Step 4: Simplify right side
   12,155.08x = 124,770,096.88
5. Step 5: Solve for x
   x = 124,770,096.88/12,155.08
6. Step 6: Final answer
   x = 10,264.85