Finding the Fourth Proportional to 116,768.50, 161,141.17 and 63,776.50

Step by Step Solution

1. Step 1: Write the proportion equation
   116,768.50 : 161,141.17 = 63,776.50 : x
2. Step 2: Convert to fraction form
   116,768.50/161,141.17 = 63,776.50/x
3. Step 3: Cross multiply
   116,768.50x = 161,141.17 × 63,776.50
4. Step 4: Simplify right side
   116,768.50x = 10,277,019,828.51
5. Step 5: Solve for x
   x = 10,277,019,828.51/116,768.50
6. Step 6: Final answer
   x = 88,011.92