Finding the Fourth Proportional to 31,981.80, 44,145.90 and 19,242.12

Step by Step Solution

1. Step 1: Write the proportion equation
   31,981.80 : 44,145.90 = 19,242.12 : x
2. Step 2: Convert to fraction form
   31,981.80/44,145.90 = 19,242.12/x
3. Step 3: Cross multiply
   31,981.80x = 44,145.90 × 19,242.12
4. Step 4: Simplify right side
   31,981.80x = 849,460,705.31
5. Step 5: Solve for x
   x = 849,460,705.31/31,981.80
6. Step 6: Final answer
   x = 26,560.75