Finding the Fourth Proportional to 56,322.81, 77,725.50 and 30,829.31

Step by Step Solution

1. Step 1: Write the proportion equation
   56,322.81 : 77,725.50 = 30,829.31 : x
2. Step 2: Convert to fraction form
   56,322.81/77,725.50 = 30,829.31/x
3. Step 3: Cross multiply
   56,322.81x = 77,725.50 × 30,829.31
4. Step 4: Simplify right side
   56,322.81x = 2,396,223,145.78
5. Step 5: Solve for x
   x = 2,396,223,145.78/56,322.81
6. Step 6: Final answer
   x = 42,544.46