Finding the Fourth Proportional to 23,498.83, 32,428.83 and 12,889

Step by Step Solution

1. Step 1: Write the proportion equation
   23,498.83 : 32,428.83 = 12,889 : x
2. Step 2: Convert to fraction form
   23,498.83/32,428.83 = 12,889/x
3. Step 3: Cross multiply
   23,498.83x = 32,428.83 × 12,889
4. Step 4: Simplify right side
   23,498.83x = 417,975,189.87
5. Step 5: Solve for x
   x = 417,975,189.87/23,498.83
6. Step 6: Final answer
   x = 17,787.06