Finding the Fourth Proportional to 55,485, 76,569.30 and 30,334.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,485 : 76,569.30 = 30,334.50 : x
2. Step 2: Convert to fraction form
   55,485/76,569.30 = 30,334.50/x
3. Step 3: Cross multiply
   55,485x = 76,569.30 × 30,334.50
4. Step 4: Simplify right side
   55,485x = 2,322,691,430.85
5. Step 5: Solve for x
   x = 2,322,691,430.85/55,485
6. Step 6: Final answer
   x = 41,861.61