Finding the Fourth Proportional to 55,860, 77,087.34 and 30,710.04

Step by Step Solution

1. Step 1: Write the proportion equation
   55,860 : 77,087.34 = 30,710.04 : x
2. Step 2: Convert to fraction form
   55,860/77,087.34 = 30,710.04/x
3. Step 3: Cross multiply
   55,860x = 77,087.34 × 30,710.04
4. Step 4: Simplify right side
   55,860x = 2,367,355,294.89
5. Step 5: Solve for x
   x = 2,367,355,294.89/55,860
6. Step 6: Final answer
   x = 42,380.15