Finding the Fourth Proportional to 40,061.77, 55,270.69 and 30,866.35

Step by Step Solution

1. Step 1: Write the proportion equation
   40,061.77 : 55,270.69 = 30,866.35 : x
2. Step 2: Convert to fraction form
   40,061.77/55,270.69 = 30,866.35/x
3. Step 3: Cross multiply
   40,061.77x = 55,270.69 × 30,866.35
4. Step 4: Simplify right side
   40,061.77x = 1,706,004,462.28
5. Step 5: Solve for x
   x = 1,706,004,462.28/40,061.77
6. Step 6: Final answer
   x = 42,584.35