Finding the Fourth Proportional to 56,243.80, 77,614.06 and 30,749.72

Step by Step Solution

1. Step 1: Write the proportion equation
   56,243.80 : 77,614.06 = 30,749.72 : x
2. Step 2: Convert to fraction form
   56,243.80/77,614.06 = 30,749.72/x
3. Step 3: Cross multiply
   56,243.80x = 77,614.06 × 30,749.72
4. Step 4: Simplify right side
   56,243.80x = 2,386,610,613.06
5. Step 5: Solve for x
   x = 2,386,610,613.06/56,243.80
6. Step 6: Final answer
   x = 42,433.31