Finding the Fourth Proportional to 56,028.82, 77,319.78 and 30,535.18

Step by Step Solution

1. Step 1: Write the proportion equation
   56,028.82 : 77,319.78 = 30,535.18 : x
2. Step 2: Convert to fraction form
   56,028.82/77,319.78 = 30,535.18/x
3. Step 3: Cross multiply
   56,028.82x = 77,319.78 × 30,535.18
4. Step 4: Simplify right side
   56,028.82x = 2,360,973,399.86
5. Step 5: Solve for x
   x = 2,360,973,399.86/56,028.82
6. Step 6: Final answer
   x = 42,138.55