Finding the Fourth Proportional to 115,147.50, 158,903.56 and 67,398.54

Step by Step Solution

1. Step 1: Write the proportion equation
   115,147.50 : 158,903.56 = 67,398.54 : x
2. Step 2: Convert to fraction form
   115,147.50/158,903.56 = 67,398.54/x
3. Step 3: Cross multiply
   115,147.50x = 158,903.56 × 67,398.54
4. Step 4: Simplify right side
   115,147.50x = 10,709,867,944.80
5. Step 5: Solve for x
   x = 10,709,867,944.80/115,147.50
6. Step 6: Final answer
   x = 93,009.99