Finding the Fourth Proportional to 9,091.38, 12,547.38 and 5,112.66

Step by Step Solution

1. Step 1: Write the proportion equation
   9,091.38 : 12,547.38 = 5,112.66 : x
2. Step 2: Convert to fraction form
   9,091.38/12,547.38 = 5,112.66/x
3. Step 3: Cross multiply
   9,091.38x = 12,547.38 × 5,112.66
4. Step 4: Simplify right side
   9,091.38x = 64,150,487.83
5. Step 5: Solve for x
   x = 64,150,487.83/9,091.38
6. Step 6: Final answer
   x = 7,056.19