Finding the Fourth Proportional to 10,148.16, 14,003.20 and 5,672.08

Step by Step Solution

1. Step 1: Write the proportion equation
   10,148.16 : 14,003.20 = 5,672.08 : x
2. Step 2: Convert to fraction form
   10,148.16/14,003.20 = 5,672.08/x
3. Step 3: Cross multiply
   10,148.16x = 14,003.20 × 5,672.08
4. Step 4: Simplify right side
   10,148.16x = 79,427,270.66
5. Step 5: Solve for x
   x = 79,427,270.66/10,148.16
6. Step 6: Final answer
   x = 7,826.77