Finding the Fourth Proportional to 113,022.84, 155,955.60 and 67,690.20

Step by Step Solution

1. Step 1: Write the proportion equation
   113,022.84 : 155,955.60 = 67,690.20 : x
2. Step 2: Convert to fraction form
   113,022.84/155,955.60 = 67,690.20/x
3. Step 3: Cross multiply
   113,022.84x = 155,955.60 × 67,690.20
4. Step 4: Simplify right side
   113,022.84x = 10,556,665,755.12
5. Step 5: Solve for x
   x = 10,556,665,755.12/113,022.84
6. Step 6: Final answer
   x = 93,402.94