Finding the Fourth Proportional to 22,855.05, 31,539.83 and 12,784.59

Step by Step Solution

1. Step 1: Write the proportion equation
   22,855.05 : 31,539.83 = 12,784.59 : x
2. Step 2: Convert to fraction form
   22,855.05/31,539.83 = 12,784.59/x
3. Step 3: Cross multiply
   22,855.05x = 31,539.83 × 12,784.59
4. Step 4: Simplify right side
   22,855.05x = 403,223,731.30
5. Step 5: Solve for x
   x = 403,223,731.30/22,855.05
6. Step 6: Final answer
   x = 17,642.65