Finding the Fourth Proportional to 137,076.50, 205,617.56 and 42,306.74

Step by Step Solution

1. Step 1: Write the proportion equation
   137,076.50 : 205,617.56 = 42,306.74 : x
2. Step 2: Convert to fraction form
   137,076.50/205,617.56 = 42,306.74/x
3. Step 3: Cross multiply
   137,076.50x = 205,617.56 × 42,306.74
4. Step 4: Simplify right side
   137,076.50x = 8,699,007,410.73
5. Step 5: Solve for x
   x = 8,699,007,410.73/137,076.50
6. Step 6: Final answer
   x = 63,460.97