Finding the Fourth Proportional to 23,490.24, 32,416.52 and 12,880.05

Step by Step Solution

1. Step 1: Write the proportion equation
   23,490.24 : 32,416.52 = 12,880.05 : x
2. Step 2: Convert to fraction form
   23,490.24/32,416.52 = 12,880.05/x
3. Step 3: Cross multiply
   23,490.24x = 32,416.52 × 12,880.05
4. Step 4: Simplify right side
   23,490.24x = 417,526,334.03
5. Step 5: Solve for x
   x = 417,526,334.03/23,490.24
6. Step 6: Final answer
   x = 17,774.46