Finding the Fourth Proportional to 10,635.72, 14,678.16 and 5,920.08

Step by Step Solution

1. Step 1: Write the proportion equation
   10,635.72 : 14,678.16 = 5,920.08 : x
2. Step 2: Convert to fraction form
   10,635.72/14,678.16 = 5,920.08/x
3. Step 3: Cross multiply
   10,635.72x = 14,678.16 × 5,920.08
4. Step 4: Simplify right side
   10,635.72x = 86,895,881.45
5. Step 5: Solve for x
   x = 86,895,881.45/10,635.72
6. Step 6: Final answer
   x = 8,170.19