Finding the Fourth Proportional to 56,046.32, 77,344.52 and 30,896.72

Step by Step Solution

1. Step 1: Write the proportion equation
   56,046.32 : 77,344.52 = 30,896.72 : x
2. Step 2: Convert to fraction form
   56,046.32/77,344.52 = 30,896.72/x
3. Step 3: Cross multiply
   56,046.32x = 77,344.52 × 30,896.72
4. Step 4: Simplify right side
   56,046.32x = 2,389,691,977.97
5. Step 5: Solve for x
   x = 2,389,691,977.97/56,046.32
6. Step 6: Final answer
   x = 42,637.80