Finding the Fourth Proportional to 150,606.72, 207,838.08 and 83,538.72

Step by Step Solution

1. Step 1: Write the proportion equation
   150,606.72 : 207,838.08 = 83,538.72 : x
2. Step 2: Convert to fraction form
   150,606.72/207,838.08 = 83,538.72/x
3. Step 3: Cross multiply
   150,606.72x = 207,838.08 × 83,538.72
4. Step 4: Simplify right side
   150,606.72x = 17,362,527,170.46
5. Step 5: Solve for x
   x = 17,362,527,170.46/150,606.72
6. Step 6: Final answer
   x = 115,283.88