Finding the Fourth Proportional to 56,123.36, 77,447.82 and 30,629.08

Step by Step Solution

1. Step 1: Write the proportion equation
   56,123.36 : 77,447.82 = 30,629.08 : x
2. Step 2: Convert to fraction form
   56,123.36/77,447.82 = 30,629.08/x
3. Step 3: Cross multiply
   56,123.36x = 77,447.82 × 30,629.08
4. Step 4: Simplify right side
   56,123.36x = 2,372,155,474.61
5. Step 5: Solve for x
   x = 2,372,155,474.61/56,123.36
6. Step 6: Final answer
   x = 42,266.81