Finding the Fourth Proportional to 151,678.50, 209,322.81 and 84,610.50

Step by Step Solution

1. Step 1: Write the proportion equation
   151,678.50 : 209,322.81 = 84,610.50 : x
2. Step 2: Convert to fraction form
   151,678.50/209,322.81 = 84,610.50/x
3. Step 3: Cross multiply
   151,678.50x = 209,322.81 × 84,610.50
4. Step 4: Simplify right side
   151,678.50x = 17,710,907,615.51
5. Step 5: Solve for x
   x = 17,710,907,615.51/151,678.50
6. Step 6: Final answer
   x = 116,766.10