Finding the Fourth Proportional to 55,419.42, 76,478.32 and 30,268.38

Step by Step Solution

1. Step 1: Write the proportion equation
   55,419.42 : 76,478.32 = 30,268.38 : x
2. Step 2: Convert to fraction form
   55,419.42/76,478.32 = 30,268.38/x
3. Step 3: Cross multiply
   55,419.42x = 76,478.32 × 30,268.38
4. Step 4: Simplify right side
   55,419.42x = 2,314,874,393.46
5. Step 5: Solve for x
   x = 2,314,874,393.46/55,419.42
6. Step 6: Final answer
   x = 41,770.10