Finding the Fourth Proportional to 55,667.16, 76,821.34 and 30,516.12

Step by Step Solution

1. Step 1: Write the proportion equation
   55,667.16 : 76,821.34 = 30,516.12 : x
2. Step 2: Convert to fraction form
   55,667.16/76,821.34 = 30,516.12/x
3. Step 3: Cross multiply
   55,667.16x = 76,821.34 × 30,516.12
4. Step 4: Simplify right side
   55,667.16x = 2,344,289,230.00
5. Step 5: Solve for x
   x = 2,344,289,230.00/55,667.16
6. Step 6: Final answer
   x = 42,112.61