Finding the Fourth Proportional to 55,487, 76,572.33 and 30,336.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,487 : 76,572.33 = 30,336.50 : x
2. Step 2: Convert to fraction form
   55,487/76,572.33 = 30,336.50/x
3. Step 3: Cross multiply
   55,487x = 76,572.33 × 30,336.50
4. Step 4: Simplify right side
   55,487x = 2,322,936,489.05
5. Step 5: Solve for x
   x = 2,322,936,489.05/55,487
6. Step 6: Final answer
   x = 41,864.52