Finding the Fourth Proportional to 9,167.63, 12,651.12 and 5,188.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,167.63 : 12,651.12 = 5,188.10 : x
2. Step 2: Convert to fraction form
   9,167.63/12,651.12 = 5,188.10/x
3. Step 3: Cross multiply
   9,167.63x = 12,651.12 × 5,188.10
4. Step 4: Simplify right side
   9,167.63x = 65,635,212.42
5. Step 5: Solve for x
   x = 65,635,212.42/9,167.63
6. Step 6: Final answer
   x = 7,159.46