Finding the Fourth Proportional to 42,870.17, 59,141.15 and 27,767.88

Step by Step Solution

1. Step 1: Write the proportion equation
   42,870.17 : 59,141.15 = 27,767.88 : x
2. Step 2: Convert to fraction form
   42,870.17/59,141.15 = 27,767.88/x
3. Step 3: Cross multiply
   42,870.17x = 59,141.15 × 27,767.88
4. Step 4: Simplify right side
   42,870.17x = 1,642,223,995.64
5. Step 5: Solve for x
   x = 1,642,223,995.64/42,870.17
6. Step 6: Final answer
   x = 38,306.91