Finding the Fourth Proportional to 42,773.80, 59,007.34 and 27,671.20

Step by Step Solution

1. Step 1: Write the proportion equation
   42,773.80 : 59,007.34 = 27,671.20 : x
2. Step 2: Convert to fraction form
   42,773.80/59,007.34 = 27,671.20/x
3. Step 3: Cross multiply
   42,773.80x = 59,007.34 × 27,671.20
4. Step 4: Simplify right side
   42,773.80x = 1,632,803,906.61
5. Step 5: Solve for x
   x = 1,632,803,906.61/42,773.80
6. Step 6: Final answer
   x = 38,172.99