Finding the Fourth Proportional to 75,003.20, 103,506.72 and 43,178.48

Step by Step Solution

1. Step 1: Write the proportion equation
   75,003.20 : 103,506.72 = 43,178.48 : x
2. Step 2: Convert to fraction form
   75,003.20/103,506.72 = 43,178.48/x
3. Step 3: Cross multiply
   75,003.20x = 103,506.72 × 43,178.48
4. Step 4: Simplify right side
   75,003.20x = 4,469,262,839.39
5. Step 5: Solve for x
   x = 4,469,262,839.39/75,003.20
6. Step 6: Final answer
   x = 59,587.63