Finding the Fourth Proportional to 9,091.84, 12,545.52 and 5,112.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,091.84 : 12,545.52 = 5,112.16 : x
2. Step 2: Convert to fraction form
   9,091.84/12,545.52 = 5,112.16/x
3. Step 3: Cross multiply
   9,091.84x = 12,545.52 × 5,112.16
4. Step 4: Simplify right side
   9,091.84x = 64,134,705.52
5. Step 5: Solve for x
   x = 64,134,705.52/9,091.84
6. Step 6: Final answer
   x = 7,054.10