Finding the Fourth Proportional to 10,388.10, 14,335.57 and 5,672.38

Step by Step Solution

1. Step 1: Write the proportion equation
   10,388.10 : 14,335.57 = 5,672.38 : x
2. Step 2: Convert to fraction form
   10,388.10/14,335.57 = 5,672.38/x
3. Step 3: Cross multiply
   10,388.10x = 14,335.57 × 5,672.38
4. Step 4: Simplify right side
   10,388.10x = 81,316,800.56
5. Step 5: Solve for x
   x = 81,316,800.56/10,388.10
6. Step 6: Final answer
   x = 7,827.88