Finding the Fourth Proportional to 31,055.41, 42,833.31 and 19,715.05

Step by Step Solution

1. Step 1: Write the proportion equation
   31,055.41 : 42,833.31 = 19,715.05 : x
2. Step 2: Convert to fraction form
   31,055.41/42,833.31 = 19,715.05/x
3. Step 3: Cross multiply
   31,055.41x = 42,833.31 × 19,715.05
4. Step 4: Simplify right side
   31,055.41x = 844,460,848.32
5. Step 5: Solve for x
   x = 844,460,848.32/31,055.41
6. Step 6: Final answer
   x = 27,192.07