Finding the Fourth Proportional to 17,558.50, 26,342.34 and 5,246.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,558.50 : 26,342.34 = 5,246.50 : x
2. Step 2: Convert to fraction form
   17,558.50/26,342.34 = 5,246.50/x
3. Step 3: Cross multiply
   17,558.50x = 26,342.34 × 5,246.50
4. Step 4: Simplify right side
   17,558.50x = 138,205,086.81
5. Step 5: Solve for x
   x = 138,205,086.81/17,558.50
6. Step 6: Final answer
   x = 7,871.12