Finding the Fourth Proportional to 31,870.18, 43,962.91 and 19,119.97

Step by Step Solution

1. Step 1: Write the proportion equation
   31,870.18 : 43,962.91 = 19,119.97 : x
2. Step 2: Convert to fraction form
   31,870.18/43,962.91 = 19,119.97/x
3. Step 3: Cross multiply
   31,870.18x = 43,962.91 × 19,119.97
4. Step 4: Simplify right side
   31,870.18x = 840,569,520.31
5. Step 5: Solve for x
   x = 840,569,520.31/31,870.18
6. Step 6: Final answer
   x = 26,374.80