Finding the Fourth Proportional to 22,840.38, 31,511.91 and 13,885.02

Step by Step Solution

1. Step 1: Write the proportion equation
   22,840.38 : 31,511.91 = 13,885.02 : x
2. Step 2: Convert to fraction form
   22,840.38/31,511.91 = 13,885.02/x
3. Step 3: Cross multiply
   22,840.38x = 31,511.91 × 13,885.02
4. Step 4: Simplify right side
   22,840.38x = 437,543,500.59
5. Step 5: Solve for x
   x = 437,543,500.59/22,840.38
6. Step 6: Final answer
   x = 19,156.58