Finding the Fourth Proportional to 22,855.01, 31,542.83 and 12,784.01

Step by Step Solution

1. Step 1: Write the proportion equation
   22,855.01 : 31,542.83 = 12,784.01 : x
2. Step 2: Convert to fraction form
   22,855.01/31,542.83 = 12,784.01/x
3. Step 3: Cross multiply
   22,855.01x = 31,542.83 × 12,784.01
4. Step 4: Simplify right side
   22,855.01x = 403,243,632.51
5. Step 5: Solve for x
   x = 403,243,632.51/22,855.01
6. Step 6: Final answer
   x = 17,643.56