Finding the Fourth Proportional to 16,978.50, 23,432.58 and 9,526.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,978.50 : 23,432.58 = 9,526.50 : x
2. Step 2: Convert to fraction form
   16,978.50/23,432.58 = 9,526.50/x
3. Step 3: Cross multiply
   16,978.50x = 23,432.58 × 9,526.50
4. Step 4: Simplify right side
   16,978.50x = 223,230,473.37
5. Step 5: Solve for x
   x = 223,230,473.37/16,978.50
6. Step 6: Final answer
   x = 13,147.83