Finding the Fourth Proportional to 8,937.72, 12,334.01 and 5,160.83

Step by Step Solution

1. Step 1: Write the proportion equation
   8,937.72 : 12,334.01 = 5,160.83 : x
2. Step 2: Convert to fraction form
   8,937.72/12,334.01 = 5,160.83/x
3. Step 3: Cross multiply
   8,937.72x = 12,334.01 × 5,160.83
4. Step 4: Simplify right side
   8,937.72x = 63,653,641.35
5. Step 5: Solve for x
   x = 63,653,641.35/8,937.72
6. Step 6: Final answer
   x = 7,121.91