Finding the Fourth Proportional to 56,123.04, 77,451.46 and 30,631.06

Step by Step Solution

1. Step 1: Write the proportion equation
   56,123.04 : 77,451.46 = 30,631.06 : x
2. Step 2: Convert to fraction form
   56,123.04/77,451.46 = 30,631.06/x
3. Step 3: Cross multiply
   56,123.04x = 77,451.46 × 30,631.06
4. Step 4: Simplify right side
   56,123.04x = 2,372,420,338.58
5. Step 5: Solve for x
   x = 2,372,420,338.58/56,123.04
6. Step 6: Final answer
   x = 42,271.77