Finding the Fourth Proportional to 150,630.72, 207,870.60 and 83,562.72

Step by Step Solution

1. Step 1: Write the proportion equation
   150,630.72 : 207,870.60 = 83,562.72 : x
2. Step 2: Convert to fraction form
   150,630.72/207,870.60 = 83,562.72/x
3. Step 3: Cross multiply
   150,630.72x = 207,870.60 × 83,562.72
4. Step 4: Simplify right side
   150,630.72x = 17,370,232,744.03
5. Step 5: Solve for x
   x = 17,370,232,744.03/150,630.72
6. Step 6: Final answer
   x = 115,316.67