Finding the Fourth Proportional to 151,688.44, 209,328.62 and 83,706

Step by Step Solution

1. Step 1: Write the proportion equation
   151,688.44 : 209,328.62 = 83,706 : x
2. Step 2: Convert to fraction form
   151,688.44/209,328.62 = 83,706/x
3. Step 3: Cross multiply
   151,688.44x = 209,328.62 × 83,706
4. Step 4: Simplify right side
   151,688.44x = 17,522,061,465.72
5. Step 5: Solve for x
   x = 17,522,061,465.72/151,688.44
6. Step 6: Final answer
   x = 115,513.49