Finding the Fourth Proportional to 151,767.72, 209,433.94 and 83,783.22

Step by Step Solution

1. Step 1: Write the proportion equation
   151,767.72 : 209,433.94 = 83,783.22 : x
2. Step 2: Convert to fraction form
   151,767.72/209,433.94 = 83,783.22/x
3. Step 3: Cross multiply
   151,767.72x = 209,433.94 × 83,783.22
4. Step 4: Simplify right side
   151,767.72x = 17,547,049,870.49
5. Step 5: Solve for x
   x = 17,547,049,870.49/151,767.72
6. Step 6: Final answer
   x = 115,617.80