Finding the Fourth Proportional to 23,389.02, 32,279.04 and 12,780.23

Step by Step Solution

1. Step 1: Write the proportion equation
   23,389.02 : 32,279.04 = 12,780.23 : x
2. Step 2: Convert to fraction form
   23,389.02/32,279.04 = 12,780.23/x
3. Step 3: Cross multiply
   23,389.02x = 32,279.04 × 12,780.23
4. Step 4: Simplify right side
   23,389.02x = 412,533,393.98
5. Step 5: Solve for x
   x = 412,533,393.98/23,389.02
6. Step 6: Final answer
   x = 17,637.91