Finding the Fourth Proportional to 42,778.07, 59,005.92 and 27,440.34

Step by Step Solution

1. Step 1: Write the proportion equation
   42,778.07 : 59,005.92 = 27,440.34 : x
2. Step 2: Convert to fraction form
   42,778.07/59,005.92 = 27,440.34/x
3. Step 3: Cross multiply
   42,778.07x = 59,005.92 × 27,440.34
4. Step 4: Simplify right side
   42,778.07x = 1,619,142,506.81
5. Step 5: Solve for x
   x = 1,619,142,506.81/42,778.07
6. Step 6: Final answer
   x = 37,849.83