Finding the Fourth Proportional to 17,724.95, 26,592.61 and 5,245.31

Step by Step Solution

1. Step 1: Write the proportion equation
   17,724.95 : 26,592.61 = 5,245.31 : x
2. Step 2: Convert to fraction form
   17,724.95/26,592.61 = 5,245.31/x
3. Step 3: Cross multiply
   17,724.95x = 26,592.61 × 5,245.31
4. Step 4: Simplify right side
   17,724.95x = 139,486,483.16
5. Step 5: Solve for x
   x = 139,486,483.16/17,724.95
6. Step 6: Final answer
   x = 7,869.50