Finding the Fourth Proportional to 55,719.12, 76,889.88 and 30,568.08

Step by Step Solution

1. Step 1: Write the proportion equation
   55,719.12 : 76,889.88 = 30,568.08 : x
2. Step 2: Convert to fraction form
   55,719.12/76,889.88 = 30,568.08/x
3. Step 3: Cross multiply
   55,719.12x = 76,889.88 × 30,568.08
4. Step 4: Simplify right side
   55,719.12x = 2,350,376,003.03
5. Step 5: Solve for x
   x = 2,350,376,003.03/55,719.12
6. Step 6: Final answer
   x = 42,182.58