Finding the Fourth Proportional to 55,815, 77,025.24 and 30,665.04

Step by Step Solution

1. Step 1: Write the proportion equation
   55,815 : 77,025.24 = 30,665.04 : x
2. Step 2: Convert to fraction form
   55,815/77,025.24 = 30,665.04/x
3. Step 3: Cross multiply
   55,815x = 77,025.24 × 30,665.04
4. Step 4: Simplify right side
   55,815x = 2,361,982,065.61
5. Step 5: Solve for x
   x = 2,361,982,065.61/55,815
6. Step 6: Final answer
   x = 42,318.05