Finding the Fourth Proportional to 10,376.79, 14,319.82 and 5,661.07

Step by Step Solution

1. Step 1: Write the proportion equation
   10,376.79 : 14,319.82 = 5,661.07 : x
2. Step 2: Convert to fraction form
   10,376.79/14,319.82 = 5,661.07/x
3. Step 3: Cross multiply
   10,376.79x = 14,319.82 × 5,661.07
4. Step 4: Simplify right side
   10,376.79x = 81,065,503.41
5. Step 5: Solve for x
   x = 81,065,503.41/10,376.79
6. Step 6: Final answer
   x = 7,812.19