Finding the Fourth Proportional to 23,500.92, 32,428.68 and 12,890.46

Step by Step Solution

1. Step 1: Write the proportion equation
   23,500.92 : 32,428.68 = 12,890.46 : x
2. Step 2: Convert to fraction form
   23,500.92/32,428.68 = 12,890.46/x
3. Step 3: Cross multiply
   23,500.92x = 32,428.68 × 12,890.46
4. Step 4: Simplify right side
   23,500.92x = 418,020,602.39
5. Step 5: Solve for x
   x = 418,020,602.39/23,500.92
6. Step 6: Final answer
   x = 17,787.41