Finding the Fourth Proportional to 150,298.50, 207,411.99 and 83,230.50

Step by Step Solution

1. Step 1: Write the proportion equation
   150,298.50 : 207,411.99 = 83,230.50 : x
2. Step 2: Convert to fraction form
   150,298.50/207,411.99 = 83,230.50/x
3. Step 3: Cross multiply
   150,298.50x = 207,411.99 × 83,230.50
4. Step 4: Simplify right side
   150,298.50x = 17,263,003,633.70
5. Step 5: Solve for x
   x = 17,263,003,633.70/150,298.50
6. Step 6: Final answer
   x = 114,858.12