Finding the Fourth Proportional to 150,407.06, 207,561.56 and 82,428.30

Step by Step Solution

1. Step 1: Write the proportion equation
   150,407.06 : 207,561.56 = 82,428.30 : x
2. Step 2: Convert to fraction form
   150,407.06/207,561.56 = 82,428.30/x
3. Step 3: Cross multiply
   150,407.06x = 207,561.56 × 82,428.30
4. Step 4: Simplify right side
   150,407.06x = 17,108,946,124.01
5. Step 5: Solve for x
   x = 17,108,946,124.01/150,407.06
6. Step 6: Final answer
   x = 113,750.95