Finding the Fourth Proportional to 123,123.77, 169,910.79 and 66,535.14

Step by Step Solution

1. Step 1: Write the proportion equation
   123,123.77 : 169,910.79 = 66,535.14 : x
2. Step 2: Convert to fraction form
   123,123.77/169,910.79 = 66,535.14/x
3. Step 3: Cross multiply
   123,123.77x = 169,910.79 × 66,535.14
4. Step 4: Simplify right side
   123,123.77x = 11,305,038,200.16
5. Step 5: Solve for x
   x = 11,305,038,200.16/123,123.77
6. Step 6: Final answer
   x = 91,818.49