Finding the Fourth Proportional to 12,594.17, 18,888.55 and 5,196.71

Step by Step Solution

1. Step 1: Write the proportion equation
   12,594.17 : 18,888.55 = 5,196.71 : x
2. Step 2: Convert to fraction form
   12,594.17/18,888.55 = 5,196.71/x
3. Step 3: Cross multiply
   12,594.17x = 18,888.55 × 5,196.71
4. Step 4: Simplify right side
   12,594.17x = 98,158,350.90
5. Step 5: Solve for x
   x = 98,158,350.90/12,594.17
6. Step 6: Final answer
   x = 7,793.95