Finding the Fourth Proportional to 12,642.22, 17,445.63 and 7,052.14

Step by Step Solution

1. Step 1: Write the proportion equation
   12,642.22 : 17,445.63 = 7,052.14 : x
2. Step 2: Convert to fraction form
   12,642.22/17,445.63 = 7,052.14/x
3. Step 3: Cross multiply
   12,642.22x = 17,445.63 × 7,052.14
4. Step 4: Simplify right side
   12,642.22x = 123,029,025.15
5. Step 5: Solve for x
   x = 123,029,025.15/12,642.22
6. Step 6: Final answer
   x = 9,731.60