Finding the Fourth Proportional to 10,376.72, 14,319.92 and 5,661.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,376.72 : 14,319.92 = 5,661.10 : x
2. Step 2: Convert to fraction form
   10,376.72/14,319.92 = 5,661.10/x
3. Step 3: Cross multiply
   10,376.72x = 14,319.92 × 5,661.10
4. Step 4: Simplify right side
   10,376.72x = 81,066,435.01
5. Step 5: Solve for x
   x = 81,066,435.01/10,376.72
6. Step 6: Final answer
   x = 7,812.34