Finding the Fourth Proportional to 31,383.30, 43,294.35 and 20,047.02

Step by Step Solution

1. Step 1: Write the proportion equation
   31,383.30 : 43,294.35 = 20,047.02 : x
2. Step 2: Convert to fraction form
   31,383.30/43,294.35 = 20,047.02/x
3. Step 3: Cross multiply
   31,383.30x = 43,294.35 × 20,047.02
4. Step 4: Simplify right side
   31,383.30x = 867,922,700.34
5. Step 5: Solve for x
   x = 867,922,700.34/31,383.30
6. Step 6: Final answer
   x = 27,655.56