Finding the Fourth Proportional to 8,685.42, 13,045.56 and 5,182.26

Step by Step Solution

1. Step 1: Write the proportion equation
   8,685.42 : 13,045.56 = 5,182.26 : x
2. Step 2: Convert to fraction form
   8,685.42/13,045.56 = 5,182.26/x
3. Step 3: Cross multiply
   8,685.42x = 13,045.56 × 5,182.26
4. Step 4: Simplify right side
   8,685.42x = 67,605,483.77
5. Step 5: Solve for x
   x = 67,605,483.77/8,685.42
6. Step 6: Final answer
   x = 7,783.79