Finding the Fourth Proportional to 10,147.98, 14,004.90 and 5,672.53

Step by Step Solution

1. Step 1: Write the proportion equation
   10,147.98 : 14,004.90 = 5,672.53 : x
2. Step 2: Convert to fraction form
   10,147.98/14,004.90 = 5,672.53/x
3. Step 3: Cross multiply
   10,147.98x = 14,004.90 × 5,672.53
4. Step 4: Simplify right side
   10,147.98x = 79,443,232.90
5. Step 5: Solve for x
   x = 79,443,232.90/10,147.98
6. Step 6: Final answer
   x = 7,828.47