Finding the Fourth Proportional to 55,605, 76,734.90 and 30,455.04

Step by Step Solution

1. Step 1: Write the proportion equation
   55,605 : 76,734.90 = 30,455.04 : x
2. Step 2: Convert to fraction form
   55,605/76,734.90 = 30,455.04/x
3. Step 3: Cross multiply
   55,605x = 76,734.90 × 30,455.04
4. Step 4: Simplify right side
   55,605x = 2,336,964,448.90
5. Step 5: Solve for x
   x = 2,336,964,448.90/55,605
6. Step 6: Final answer
   x = 42,027.96