Finding the Fourth Proportional to 31,071.09, 42,881.10 and 19,141.41

Step by Step Solution

1. Step 1: Write the proportion equation
   31,071.09 : 42,881.10 = 19,141.41 : x
2. Step 2: Convert to fraction form
   31,071.09/42,881.10 = 19,141.41/x
3. Step 3: Cross multiply
   31,071.09x = 42,881.10 × 19,141.41
4. Step 4: Simplify right side
   31,071.09x = 820,804,716.35
5. Step 5: Solve for x
   x = 820,804,716.35/31,071.09
6. Step 6: Final answer
   x = 26,416.99