Finding the Fourth Proportional to 31,105.98, 46,641.65 and 18,460.87

Step by Step Solution

1. Step 1: Write the proportion equation
   31,105.98 : 46,641.65 = 18,460.87 : x
2. Step 2: Convert to fraction form
   31,105.98/46,641.65 = 18,460.87/x
3. Step 3: Cross multiply
   31,105.98x = 46,641.65 × 18,460.87
4. Step 4: Simplify right side
   31,105.98x = 861,045,228.33
5. Step 5: Solve for x
   x = 861,045,228.33/31,105.98
6. Step 6: Final answer
   x = 27,681.02