Finding the Fourth Proportional to 10,387.74, 14,334.88 and 5,672.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,387.74 : 14,334.88 = 5,672.06 : x
2. Step 2: Convert to fraction form
   10,387.74/14,334.88 = 5,672.06/x
3. Step 3: Cross multiply
   10,387.74x = 14,334.88 × 5,672.06
4. Step 4: Simplify right side
   10,387.74x = 81,308,299.45
5. Step 5: Solve for x
   x = 81,308,299.45/10,387.74
6. Step 6: Final answer
   x = 7,827.33