Finding the Fourth Proportional to 8,111.16, 12,180.63 and 5,009.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,111.16 : 12,180.63 = 5,009.52 : x
2. Step 2: Convert to fraction form
   8,111.16/12,180.63 = 5,009.52/x
3. Step 3: Cross multiply
   8,111.16x = 12,180.63 × 5,009.52
4. Step 4: Simplify right side
   8,111.16x = 61,019,109.60
5. Step 5: Solve for x
   x = 61,019,109.60/8,111.16
6. Step 6: Final answer
   x = 7,522.86