Finding the Fourth Proportional to 23,870.17, 32,939.91 and 13,260.47

Step by Step Solution

1. Step 1: Write the proportion equation
   23,870.17 : 32,939.91 = 13,260.47 : x
2. Step 2: Convert to fraction form
   23,870.17/32,939.91 = 13,260.47/x
3. Step 3: Cross multiply
   23,870.17x = 32,939.91 × 13,260.47
4. Step 4: Simplify right side
   23,870.17x = 436,798,770.71
5. Step 5: Solve for x
   x = 436,798,770.71/23,870.17
6. Step 6: Final answer
   x = 18,298.94