Finding the Fourth Proportional to 9,167.18, 12,650.62 and 5,188.26

Step by Step Solution

1. Step 1: Write the proportion equation
   9,167.18 : 12,650.62 = 5,188.26 : x
2. Step 2: Convert to fraction form
   9,167.18/12,650.62 = 5,188.26/x
3. Step 3: Cross multiply
   9,167.18x = 12,650.62 × 5,188.26
4. Step 4: Simplify right side
   9,167.18x = 65,634,705.72
5. Step 5: Solve for x
   x = 65,634,705.72/9,167.18
6. Step 6: Final answer
   x = 7,159.75