Finding the Fourth Proportional to 16,802.79, 25,134.89 and 13,807.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,802.79 : 25,134.89 = 13,807.50 : x
2. Step 2: Convert to fraction form
   16,802.79/25,134.89 = 13,807.50/x
3. Step 3: Cross multiply
   16,802.79x = 25,134.89 × 13,807.50
4. Step 4: Simplify right side
   16,802.79x = 347,049,924.64
5. Step 5: Solve for x
   x = 347,049,924.64/16,802.79
6. Step 6: Final answer
   x = 20,654.30