Finding the Fourth Proportional to 31,087.34, 46,603.31 and 14,438.30

Step by Step Solution

1. Step 1: Write the proportion equation
   31,087.34 : 46,603.31 = 14,438.30 : x
2. Step 2: Convert to fraction form
   31,087.34/46,603.31 = 14,438.30/x
3. Step 3: Cross multiply
   31,087.34x = 46,603.31 × 14,438.30
4. Step 4: Simplify right side
   31,087.34x = 672,872,265.56
5. Step 5: Solve for x
   x = 672,872,265.56/31,087.34
6. Step 6: Final answer
   x = 21,644.58