Finding the Fourth Proportional to 56,118.29, 77,443.68 and 30,624.85

Step by Step Solution

1. Step 1: Write the proportion equation
   56,118.29 : 77,443.68 = 30,624.85 : x
2. Step 2: Convert to fraction form
   56,118.29/77,443.68 = 30,624.85/x
3. Step 3: Cross multiply
   56,118.29x = 77,443.68 × 30,624.85
4. Step 4: Simplify right side
   56,118.29x = 2,371,701,295.10
5. Step 5: Solve for x
   x = 2,371,701,295.10/56,118.29
6. Step 6: Final answer
   x = 42,262.54