Finding the Fourth Proportional to 42,002.31, 62,981.59 and 19,809.73

Step by Step Solution

1. Step 1: Write the proportion equation
   42,002.31 : 62,981.59 = 19,809.73 : x
2. Step 2: Convert to fraction form
   42,002.31/62,981.59 = 19,809.73/x
3. Step 3: Cross multiply
   42,002.31x = 62,981.59 × 19,809.73
4. Step 4: Simplify right side
   42,002.31x = 1,247,648,085.89
5. Step 5: Solve for x
   x = 1,247,648,085.89/42,002.31
6. Step 6: Final answer
   x = 29,704.27