Finding the Fourth Proportional to 133,007.05, 199,510.81 and 106,521.50

Step by Step Solution

1. Step 1: Write the proportion equation
   133,007.05 : 199,510.81 = 106,521.50 : x
2. Step 2: Convert to fraction form
   133,007.05/199,510.81 = 106,521.50/x
3. Step 3: Cross multiply
   133,007.05x = 199,510.81 × 106,521.50
4. Step 4: Simplify right side
   133,007.05x = 21,252,189,217.25
5. Step 5: Solve for x
   x = 21,252,189,217.25/133,007.05
6. Step 6: Final answer
   x = 159,782.43