Finding the Fourth Proportional to 42,871.80, 59,149.35 and 27,776.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,871.80 : 59,149.35 = 27,776.10 : x
2. Step 2: Convert to fraction form
   42,871.80/59,149.35 = 27,776.10/x
3. Step 3: Cross multiply
   42,871.80x = 59,149.35 × 27,776.10
4. Step 4: Simplify right side
   42,871.80x = 1,642,938,260.54
5. Step 5: Solve for x
   x = 1,642,938,260.54/42,871.80
6. Step 6: Final answer
   x = 38,322.12