Finding the Fourth Proportional to 10,387.68, 14,335.02 and 5,672.04

Step by Step Solution

1. Step 1: Write the proportion equation
   10,387.68 : 14,335.02 = 5,672.04 : x
2. Step 2: Convert to fraction form
   10,387.68/14,335.02 = 5,672.04/x
3. Step 3: Cross multiply
   10,387.68x = 14,335.02 × 5,672.04
4. Step 4: Simplify right side
   10,387.68x = 81,308,806.84
5. Step 5: Solve for x
   x = 81,308,806.84/10,387.68
6. Step 6: Final answer
   x = 7,827.43