Finding the Fourth Proportional to 23,492.79, 32,418.18 and 13,419.81

Step by Step Solution

1. Step 1: Write the proportion equation
   23,492.79 : 32,418.18 = 13,419.81 : x
2. Step 2: Convert to fraction form
   23,492.79/32,418.18 = 13,419.81/x
3. Step 3: Cross multiply
   23,492.79x = 32,418.18 × 13,419.81
4. Step 4: Simplify right side
   23,492.79x = 435,045,816.15
5. Step 5: Solve for x
   x = 435,045,816.15/23,492.79
6. Step 6: Final answer
   x = 18,518.27