Finding the Fourth Proportional to 31,052.18, 42,848.43 and 17,620.76

Step by Step Solution

1. Step 1: Write the proportion equation
   31,052.18 : 42,848.43 = 17,620.76 : x
2. Step 2: Convert to fraction form
   31,052.18/42,848.43 = 17,620.76/x
3. Step 3: Cross multiply
   31,052.18x = 42,848.43 × 17,620.76
4. Step 4: Simplify right side
   31,052.18x = 755,021,687.16
5. Step 5: Solve for x
   x = 755,021,687.16/31,052.18
6. Step 6: Final answer
   x = 24,314.62