Finding the Fourth Proportional to 31,114.56, 42,941.78 and 19,646.13

Step by Step Solution

1. Step 1: Write the proportion equation
   31,114.56 : 42,941.78 = 19,646.13 : x
2. Step 2: Convert to fraction form
   31,114.56/42,941.78 = 19,646.13/x
3. Step 3: Cross multiply
   31,114.56x = 42,941.78 × 19,646.13
4. Step 4: Simplify right side
   31,114.56x = 843,639,792.31
5. Step 5: Solve for x
   x = 843,639,792.31/31,114.56
6. Step 6: Final answer
   x = 27,113.99