Finding the Fourth Proportional to 31,292.18, 46,877.78 and 17,399.06

Step by Step Solution

1. Step 1: Write the proportion equation
   31,292.18 : 46,877.78 = 17,399.06 : x
2. Step 2: Convert to fraction form
   31,292.18/46,877.78 = 17,399.06/x
3. Step 3: Cross multiply
   31,292.18x = 46,877.78 × 17,399.06
4. Step 4: Simplify right side
   31,292.18x = 815,628,985.50
5. Step 5: Solve for x
   x = 815,628,985.50/31,292.18
6. Step 6: Final answer
   x = 26,064.95