Finding the Fourth Proportional to 12,641.50, 17,445.28 and 7,052.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,641.50 : 17,445.28 = 7,052.50 : x
2. Step 2: Convert to fraction form
   12,641.50/17,445.28 = 7,052.50/x
3. Step 3: Cross multiply
   12,641.50x = 17,445.28 × 7,052.50
4. Step 4: Simplify right side
   12,641.50x = 123,032,837.20
5. Step 5: Solve for x
   x = 123,032,837.20/12,641.50
6. Step 6: Final answer
   x = 9,732.46