Finding the Fourth Proportional to 39,870.00, 55,028.57 and 22,885.72

Step by Step Solution

1. Step 1: Write the proportion equation
   39,870.00 : 55,028.57 = 22,885.72 : x
2. Step 2: Convert to fraction form
   39,870.00/55,028.57 = 22,885.72/x
3. Step 3: Cross multiply
   39,870.00x = 55,028.57 × 22,885.72
4. Step 4: Simplify right side
   39,870.00x = 1,259,368,386.48
5. Step 5: Solve for x
   x = 1,259,368,386.48/39,870.00
6. Step 6: Final answer
   x = 31,586.87