Finding the Fourth Proportional to 12,567.36, 17,343.06 and 7,854.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,567.36 : 17,343.06 = 7,854.42 : x
2. Step 2: Convert to fraction form
   12,567.36/17,343.06 = 7,854.42/x
3. Step 3: Cross multiply
   12,567.36x = 17,343.06 × 7,854.42
4. Step 4: Simplify right side
   12,567.36x = 136,219,677.33
5. Step 5: Solve for x
   x = 136,219,677.33/12,567.36
6. Step 6: Final answer
   x = 10,839.16