Finding the Fourth Proportional to 56,016.77, 77,302.76 and 30,866.27

Step by Step Solution

1. Step 1: Write the proportion equation
   56,016.77 : 77,302.76 = 30,866.27 : x
2. Step 2: Convert to fraction form
   56,016.77/77,302.76 = 30,866.27/x
3. Step 3: Cross multiply
   56,016.77x = 77,302.76 × 30,866.27
4. Step 4: Simplify right side
   56,016.77x = 2,386,047,321.06
5. Step 5: Solve for x
   x = 2,386,047,321.06/56,016.77
6. Step 6: Final answer
   x = 42,595.24