Finding the Fourth Proportional to 67,786.28, 93,534.08 and 42,288.59

Step by Step Solution

1. Step 1: Write the proportion equation
   67,786.28 : 93,534.08 = 42,288.59 : x
2. Step 2: Convert to fraction form
   67,786.28/93,534.08 = 42,288.59/x
3. Step 3: Cross multiply
   67,786.28x = 93,534.08 × 42,288.59
4. Step 4: Simplify right side
   67,786.28x = 3,955,424,382.54
5. Step 5: Solve for x
   x = 3,955,424,382.54/67,786.28
6. Step 6: Final answer
   x = 58,351.40