Finding the Fourth Proportional to 99,883.42, 149,665.44 and 69,954.10

Step by Step Solution

1. Step 1: Write the proportion equation
   99,883.42 : 149,665.44 = 69,954.10 : x
2. Step 2: Convert to fraction form
   99,883.42/149,665.44 = 69,954.10/x
3. Step 3: Cross multiply
   99,883.42x = 149,665.44 × 69,954.10
4. Step 4: Simplify right side
   99,883.42x = 10,469,711,156.30
5. Step 5: Solve for x
   x = 10,469,711,156.30/99,883.42
6. Step 6: Final answer
   x = 104,819.31