Finding the Fourth Proportional to 31,011.02, 42,795.15 and 16,863.74

Step by Step Solution

1. Step 1: Write the proportion equation
   31,011.02 : 42,795.15 = 16,863.74 : x
2. Step 2: Convert to fraction form
   31,011.02/42,795.15 = 16,863.74/x
3. Step 3: Cross multiply
   31,011.02x = 42,795.15 × 16,863.74
4. Step 4: Simplify right side
   31,011.02x = 721,686,282.86
5. Step 5: Solve for x
   x = 721,686,282.86/31,011.02
6. Step 6: Final answer
   x = 23,271.93