Finding the Fourth Proportional to 9,199.51, 12,695.63 and 5,167.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,199.51 : 12,695.63 = 5,167.05 : x
2. Step 2: Convert to fraction form
   9,199.51/12,695.63 = 5,167.05/x
3. Step 3: Cross multiply
   9,199.51x = 12,695.63 × 5,167.05
4. Step 4: Simplify right side
   9,199.51x = 65,598,895.07
5. Step 5: Solve for x
   x = 65,598,895.07/9,199.51
6. Step 6: Final answer
   x = 7,130.70