Finding the Fourth Proportional to 9,693.12, 14,536.60 and 3,117.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,693.12 : 14,536.60 = 3,117.72 : x
2. Step 2: Convert to fraction form
   9,693.12/14,536.60 = 3,117.72/x
3. Step 3: Cross multiply
   9,693.12x = 14,536.60 × 3,117.72
4. Step 4: Simplify right side
   9,693.12x = 45,321,048.55
5. Step 5: Solve for x
   x = 45,321,048.55/9,693.12
6. Step 6: Final answer
   x = 4,675.59