Finding the Fourth Proportional to 31,784.99, 43,862.83 and 18,172.89

Step by Step Solution

1. Step 1: Write the proportion equation
   31,784.99 : 43,862.83 = 18,172.89 : x
2. Step 2: Convert to fraction form
   31,784.99/43,862.83 = 18,172.89/x
3. Step 3: Cross multiply
   31,784.99x = 43,862.83 × 18,172.89
4. Step 4: Simplify right side
   31,784.99x = 797,114,549.85
5. Step 5: Solve for x
   x = 797,114,549.85/31,784.99
6. Step 6: Final answer
   x = 25,078.33