Finding the Fourth Proportional to 23,499.99, 32,429.43 and 12,889.53

Step by Step Solution

1. Step 1: Write the proportion equation
   23,499.99 : 32,429.43 = 12,889.53 : x
2. Step 2: Convert to fraction form
   23,499.99/32,429.43 = 12,889.53/x
3. Step 3: Cross multiply
   23,499.99x = 32,429.43 × 12,889.53
4. Step 4: Simplify right side
   23,499.99x = 418,000,110.87
5. Step 5: Solve for x
   x = 418,000,110.87/23,499.99
6. Step 6: Final answer
   x = 17,787.25