Finding the Fourth Proportional to 9,166.26, 12,656.72 and 7,187.02

Step by Step Solution

1. Step 1: Write the proportion equation
   9,166.26 : 12,656.72 = 7,187.02 : x
2. Step 2: Convert to fraction form
   9,166.26/12,656.72 = 7,187.02/x
3. Step 3: Cross multiply
   9,166.26x = 12,656.72 × 7,187.02
4. Step 4: Simplify right side
   9,166.26x = 90,964,099.77
5. Step 5: Solve for x
   x = 90,964,099.77/9,166.26
6. Step 6: Final answer
   x = 9,923.80