Finding the Fourth Proportional to 31,005.55, 42,788.52 and 19,062.10

Step by Step Solution

1. Step 1: Write the proportion equation
   31,005.55 : 42,788.52 = 19,062.10 : x
2. Step 2: Convert to fraction form
   31,005.55/42,788.52 = 19,062.10/x
3. Step 3: Cross multiply
   31,005.55x = 42,788.52 × 19,062.10
4. Step 4: Simplify right side
   31,005.55x = 815,639,047.09
5. Step 5: Solve for x
   x = 815,639,047.09/31,005.55
6. Step 6: Final answer
   x = 26,306.23