Finding the Fourth Proportional to 111,834.50, 154,340.50 and 64,092.28

Step by Step Solution

1. Step 1: Write the proportion equation
   111,834.50 : 154,340.50 = 64,092.28 : x
2. Step 2: Convert to fraction form
   111,834.50/154,340.50 = 64,092.28/x
3. Step 3: Cross multiply
   111,834.50x = 154,340.50 × 64,092.28
4. Step 4: Simplify right side
   111,834.50x = 9,892,034,541.34
5. Step 5: Solve for x
   x = 9,892,034,541.34/111,834.50
6. Step 6: Final answer
   x = 88,452.44