Finding the Fourth Proportional to 31,045.96, 42,844.36 and 19,116.18

Step by Step Solution

1. Step 1: Write the proportion equation
   31,045.96 : 42,844.36 = 19,116.18 : x
2. Step 2: Convert to fraction form
   31,045.96/42,844.36 = 19,116.18/x
3. Step 3: Cross multiply
   31,045.96x = 42,844.36 × 19,116.18
4. Step 4: Simplify right side
   31,045.96x = 819,020,402.16
5. Step 5: Solve for x
   x = 819,020,402.16/31,045.96
6. Step 6: Final answer
   x = 26,380.90