Finding the Fourth Proportional to 31,119.42, 42,943.32 and 19,039.98

Step by Step Solution

1. Step 1: Write the proportion equation
   31,119.42 : 42,943.32 = 19,039.98 : x
2. Step 2: Convert to fraction form
   31,119.42/42,943.32 = 19,039.98/x
3. Step 3: Cross multiply
   31,119.42x = 42,943.32 × 19,039.98
4. Step 4: Simplify right side
   31,119.42x = 817,639,953.93
5. Step 5: Solve for x
   x = 817,639,953.93/31,119.42
6. Step 6: Final answer
   x = 26,274.27