Finding the Fourth Proportional to 104,362.68, 143,965.33 and 74,160.21

Step by Step Solution

1. Step 1: Write the proportion equation
   104,362.68 : 143,965.33 = 74,160.21 : x
2. Step 2: Convert to fraction form
   104,362.68/143,965.33 = 74,160.21/x
3. Step 3: Cross multiply
   104,362.68x = 143,965.33 × 74,160.21
4. Step 4: Simplify right side
   104,362.68x = 10,676,499,105.52
5. Step 5: Solve for x
   x = 10,676,499,105.52/104,362.68
6. Step 6: Final answer
   x = 102,301.89