Finding the Fourth Proportional to 55,215, 76,196.70 and 30,064.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,215 : 76,196.70 = 30,064.50 : x
2. Step 2: Convert to fraction form
   55,215/76,196.70 = 30,064.50/x
3. Step 3: Cross multiply
   55,215x = 76,196.70 × 30,064.50
4. Step 4: Simplify right side
   55,215x = 2,290,815,687.15
5. Step 5: Solve for x
   x = 2,290,815,687.15/55,215
6. Step 6: Final answer
   x = 41,489.01