Finding the Fourth Proportional to 106,463, 159,362.33 and 78,414.72

Step by Step Solution

1. Step 1: Write the proportion equation
   106,463 : 159,362.33 = 78,414.72 : x
2. Step 2: Convert to fraction form
   106,463/159,362.33 = 78,414.72/x
3. Step 3: Cross multiply
   106,463x = 159,362.33 × 78,414.72
4. Step 4: Simplify right side
   106,463x = 12,496,352,485.50
5. Step 5: Solve for x
   x = 12,496,352,485.50/106,463
6. Step 6: Final answer
   x = 117,377.42