Finding the Fourth Proportional to 31,014.34, 42,781.56 and 19,510.96

Step by Step Solution

1. Step 1: Write the proportion equation
   31,014.34 : 42,781.56 = 19,510.96 : x
2. Step 2: Convert to fraction form
   31,014.34/42,781.56 = 19,510.96/x
3. Step 3: Cross multiply
   31,014.34x = 42,781.56 × 19,510.96
4. Step 4: Simplify right side
   31,014.34x = 834,709,091.99
5. Step 5: Solve for x
   x = 834,709,091.99/31,014.34
6. Step 6: Final answer
   x = 26,913.65