Finding the Fourth Proportional to 160,947.50, 222,107.55 and 90,291.50

Step by Step Solution

1. Step 1: Write the proportion equation
   160,947.50 : 222,107.55 = 90,291.50 : x
2. Step 2: Convert to fraction form
   160,947.50/222,107.55 = 90,291.50/x
3. Step 3: Cross multiply
   160,947.50x = 222,107.55 × 90,291.50
4. Step 4: Simplify right side
   160,947.50x = 20,054,423,850.83
5. Step 5: Solve for x
   x = 20,054,423,850.83/160,947.50
6. Step 6: Final answer
   x = 124,602.27