Finding the Fourth Proportional to 23,437.79, 32,344.20 and 12,828.10

Step by Step Solution

1. Step 1: Write the proportion equation
   23,437.79 : 32,344.20 = 12,828.10 : x
2. Step 2: Convert to fraction form
   23,437.79/32,344.20 = 12,828.10/x
3. Step 3: Cross multiply
   23,437.79x = 32,344.20 × 12,828.10
4. Step 4: Simplify right side
   23,437.79x = 414,914,632.02
5. Step 5: Solve for x
   x = 414,914,632.02/23,437.79
6. Step 6: Final answer
   x = 17,702.81