Finding the Fourth Proportional to 31,047.21, 42,763.53 and 23,863.39

Step by Step Solution

1. Step 1: Write the proportion equation
   31,047.21 : 42,763.53 = 23,863.39 : x
2. Step 2: Convert to fraction form
   31,047.21/42,763.53 = 23,863.39/x
3. Step 3: Cross multiply
   31,047.21x = 42,763.53 × 23,863.39
4. Step 4: Simplify right side
   31,047.21x = 1,020,482,794.17
5. Step 5: Solve for x
   x = 1,020,482,794.17/31,047.21
6. Step 6: Final answer
   x = 32,868.74