Finding the Fourth Proportional to 23,640.09, 32,623.22 and 13,029.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,640.09 : 32,623.22 = 13,029.72 : x
2. Step 2: Convert to fraction form
   23,640.09/32,623.22 = 13,029.72/x
3. Step 3: Cross multiply
   23,640.09x = 32,623.22 × 13,029.72
4. Step 4: Simplify right side
   23,640.09x = 425,071,422.10
5. Step 5: Solve for x
   x = 425,071,422.10/23,640.09
6. Step 6: Final answer
   x = 17,980.96