Finding the Fourth Proportional to 31,032.63, 42,825.96 and 16,886.43

Step by Step Solution

1. Step 1: Write the proportion equation
   31,032.63 : 42,825.96 = 16,886.43 : x
2. Step 2: Convert to fraction form
   31,032.63/42,825.96 = 16,886.43/x
3. Step 3: Cross multiply
   31,032.63x = 42,825.96 × 16,886.43
4. Step 4: Simplify right side
   31,032.63x = 723,177,575.72
5. Step 5: Solve for x
   x = 723,177,575.72/31,032.63
6. Step 6: Final answer
   x = 23,303.78