Finding the Fourth Proportional to 151,647.97, 209,274.91 and 83,665.77

Step by Step Solution

1. Step 1: Write the proportion equation
   151,647.97 : 209,274.91 = 83,665.77 : x
2. Step 2: Convert to fraction form
   151,647.97/209,274.91 = 83,665.77/x
3. Step 3: Cross multiply
   151,647.97x = 209,274.91 × 83,665.77
4. Step 4: Simplify right side
   151,647.97x = 17,509,146,068.50
5. Step 5: Solve for x
   x = 17,509,146,068.50/151,647.97
6. Step 6: Final answer
   x = 115,459.15