Finding the Fourth Proportional to 55,854.72, 77,074.56 and 30,703.68

Step by Step Solution

1. Step 1: Write the proportion equation
   55,854.72 : 77,074.56 = 30,703.68 : x
2. Step 2: Convert to fraction form
   55,854.72/77,074.56 = 30,703.68/x
3. Step 3: Cross multiply
   55,854.72x = 77,074.56 × 30,703.68
4. Step 4: Simplify right side
   55,854.72x = 2,366,472,626.38
5. Step 5: Solve for x
   x = 2,366,472,626.38/55,854.72
6. Step 6: Final answer
   x = 42,368.36