Finding the Fourth Proportional to 55,707.16, 76,876.50 and 30,556.12

Step by Step Solution

1. Step 1: Write the proportion equation
   55,707.16 : 76,876.50 = 30,556.12 : x
2. Step 2: Convert to fraction form
   55,707.16/76,876.50 = 30,556.12/x
3. Step 3: Cross multiply
   55,707.16x = 76,876.50 × 30,556.12
4. Step 4: Simplify right side
   55,707.16x = 2,349,047,559.18
5. Step 5: Solve for x
   x = 2,349,047,559.18/55,707.16
6. Step 6: Final answer
   x = 42,167.79