Finding the Fourth Proportional to 42,019.48, 62,995.92 and 20,948.04

Step by Step Solution

1. Step 1: Write the proportion equation
   42,019.48 : 62,995.92 = 20,948.04 : x
2. Step 2: Convert to fraction form
   42,019.48/62,995.92 = 20,948.04/x
3. Step 3: Cross multiply
   42,019.48x = 62,995.92 × 20,948.04
4. Step 4: Simplify right side
   42,019.48x = 1,319,641,052.00
5. Step 5: Solve for x
   x = 1,319,641,052.00/42,019.48
6. Step 6: Final answer
   x = 31,405.46