Finding the Fourth Proportional to 106,870.20, 147,454.38 and 69,099

Step by Step Solution

1. Step 1: Write the proportion equation
   106,870.20 : 147,454.38 = 69,099 : x
2. Step 2: Convert to fraction form
   106,870.20/147,454.38 = 69,099/x
3. Step 3: Cross multiply
   106,870.20x = 147,454.38 × 69,099
4. Step 4: Simplify right side
   106,870.20x = 10,188,950,203.62
5. Step 5: Solve for x
   x = 10,188,950,203.62/106,870.20
6. Step 6: Final answer
   x = 95,339.49