Finding the Fourth Proportional to 56,022.93, 77,311.98 and 30,872.43

Step by Step Solution

1. Step 1: Write the proportion equation
   56,022.93 : 77,311.98 = 30,872.43 : x
2. Step 2: Convert to fraction form
   56,022.93/77,311.98 = 30,872.43/x
3. Step 3: Cross multiply
   56,022.93x = 77,311.98 × 30,872.43
4. Step 4: Simplify right side
   56,022.93x = 2,386,808,690.71
5. Step 5: Solve for x
   x = 2,386,808,690.71/56,022.93
6. Step 6: Final answer
   x = 42,604.14