Finding the Fourth Proportional to 10,807.61, 14,920.13 and 7,671.29

Step by Step Solution

1. Step 1: Write the proportion equation
   10,807.61 : 14,920.13 = 7,671.29 : x
2. Step 2: Convert to fraction form
   10,807.61/14,920.13 = 7,671.29/x
3. Step 3: Cross multiply
   10,807.61x = 14,920.13 × 7,671.29
4. Step 4: Simplify right side
   10,807.61x = 114,456,588.65
5. Step 5: Solve for x
   x = 114,456,588.65/10,807.61
6. Step 6: Final answer
   x = 10,590.37