Finding the Fourth Proportional to 20,892.83, 28,769.06 and 18,055.00

Step by Step Solution

1. Step 1: Write the proportion equation
   20,892.83 : 28,769.06 = 18,055.00 : x
2. Step 2: Convert to fraction form
   20,892.83/28,769.06 = 18,055.00/x
3. Step 3: Cross multiply
   20,892.83x = 28,769.06 × 18,055.00
4. Step 4: Simplify right side
   20,892.83x = 519,425,144.18
5. Step 5: Solve for x
   x = 519,425,144.18/20,892.83
6. Step 6: Final answer
   x = 24,861.41