Finding the Fourth Proportional to 8,873.93, 12,240.60 and 5,686.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,873.93 : 12,240.60 = 5,686.16 : x
2. Step 2: Convert to fraction form
   8,873.93/12,240.60 = 5,686.16/x
3. Step 3: Cross multiply
   8,873.93x = 12,240.60 × 5,686.16
4. Step 4: Simplify right side
   8,873.93x = 69,601,948.89
5. Step 5: Solve for x
   x = 69,601,948.89/8,873.93
6. Step 6: Final answer
   x = 7,843.42