Finding the Fourth Proportional to 23,870.37, 32,940.21 and 13,259.79

Step by Step Solution

1. Step 1: Write the proportion equation
   23,870.37 : 32,940.21 = 13,259.79 : x
2. Step 2: Convert to fraction form
   23,870.37/32,940.21 = 13,259.79/x
3. Step 3: Cross multiply
   23,870.37x = 32,940.21 × 13,259.79
4. Step 4: Simplify right side
   23,870.37x = 436,780,267.16
5. Step 5: Solve for x
   x = 436,780,267.16/23,870.37
6. Step 6: Final answer
   x = 18,298.01