Finding the Fourth Proportional to 13,625.31, 18,801 and 7,656.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,625.31 : 18,801 = 7,656.69 : x
2. Step 2: Convert to fraction form
   13,625.31/18,801 = 7,656.69/x
3. Step 3: Cross multiply
   13,625.31x = 18,801 × 7,656.69
4. Step 4: Simplify right side
   13,625.31x = 143,953,428.69
5. Step 5: Solve for x
   x = 143,953,428.69/13,625.31
6. Step 6: Final answer
   x = 10,565.15