Finding the Fourth Proportional to 23,657.72, 32,647.86 and 13,047.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,657.72 : 32,647.86 = 13,047.72 : x
2. Step 2: Convert to fraction form
   23,657.72/32,647.86 = 13,047.72/x
3. Step 3: Cross multiply
   23,657.72x = 32,647.86 × 13,047.72
4. Step 4: Simplify right side
   23,657.72x = 425,980,135.88
5. Step 5: Solve for x
   x = 425,980,135.88/23,657.72
6. Step 6: Final answer
   x = 18,005.97