Finding the Fourth Proportional to 103,673.12, 143,112.24 and 70,158.56

Step by Step Solution

1. Step 1: Write the proportion equation
   103,673.12 : 143,112.24 = 70,158.56 : x
2. Step 2: Convert to fraction form
   103,673.12/143,112.24 = 70,158.56/x
3. Step 3: Cross multiply
   103,673.12x = 143,112.24 × 70,158.56
4. Step 4: Simplify right side
   103,673.12x = 10,040,548,676.77
5. Step 5: Solve for x
   x = 10,040,548,676.77/103,673.12
6. Step 6: Final answer
   x = 96,848.14