Finding the Fourth Proportional to 140,022.81, 209,845.89 and 76,748.04

Step by Step Solution

1. Step 1: Write the proportion equation
   140,022.81 : 209,845.89 = 76,748.04 : x
2. Step 2: Convert to fraction form
   140,022.81/209,845.89 = 76,748.04/x
3. Step 3: Cross multiply
   140,022.81x = 209,845.89 × 76,748.04
4. Step 4: Simplify right side
   140,022.81x = 16,105,260,759.56
5. Step 5: Solve for x
   x = 16,105,260,759.56/140,022.81
6. Step 6: Final answer
   x = 115,018.84