Finding the Fourth Proportional to 55,619.89, 76,755.72 and 30,469.39

Step by Step Solution

1. Step 1: Write the proportion equation
   55,619.89 : 76,755.72 = 30,469.39 : x
2. Step 2: Convert to fraction form
   55,619.89/76,755.72 = 30,469.39/x
3. Step 3: Cross multiply
   55,619.89x = 76,755.72 × 30,469.39
4. Step 4: Simplify right side
   55,619.89x = 2,338,699,967.41
5. Step 5: Solve for x
   x = 2,338,699,967.41/55,619.89
6. Step 6: Final answer
   x = 42,047.91