Finding the Fourth Proportional to 115,145.50, 158,900.80 and 67,396.54

Step by Step Solution

1. Step 1: Write the proportion equation
   115,145.50 : 158,900.80 = 67,396.54 : x
2. Step 2: Convert to fraction form
   115,145.50/158,900.80 = 67,396.54/x
3. Step 3: Cross multiply
   115,145.50x = 158,900.80 × 67,396.54
4. Step 4: Simplify right side
   115,145.50x = 10,709,364,123.23
5. Step 5: Solve for x
   x = 10,709,364,123.23/115,145.50
6. Step 6: Final answer
   x = 93,007.23