Finding the Fourth Proportional to 17,200.47, 23,737.80 and 9,647.31

Step by Step Solution

1. Step 1: Write the proportion equation
   17,200.47 : 23,737.80 = 9,647.31 : x
2. Step 2: Convert to fraction form
   17,200.47/23,737.80 = 9,647.31/x
3. Step 3: Cross multiply
   17,200.47x = 23,737.80 × 9,647.31
4. Step 4: Simplify right side
   17,200.47x = 229,005,915.32
5. Step 5: Solve for x
   x = 229,005,915.32/17,200.47
6. Step 6: Final answer
   x = 13,313.93