Finding the Fourth Proportional to 55,515, 76,610.70 and 30,364.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,515 : 76,610.70 = 30,364.50 : x
2. Step 2: Convert to fraction form
   55,515/76,610.70 = 30,364.50/x
3. Step 3: Cross multiply
   55,515x = 76,610.70 × 30,364.50
4. Step 4: Simplify right side
   55,515x = 2,326,245,600.15
5. Step 5: Solve for x
   x = 2,326,245,600.15/55,515
6. Step 6: Final answer
   x = 41,903.01