Finding the Fourth Proportional to 111,069.09, 153,299.94 and 76,662.12

Step by Step Solution

1. Step 1: Write the proportion equation
   111,069.09 : 153,299.94 = 76,662.12 : x
2. Step 2: Convert to fraction form
   111,069.09/153,299.94 = 76,662.12/x
3. Step 3: Cross multiply
   111,069.09x = 153,299.94 × 76,662.12
4. Step 4: Simplify right side
   111,069.09x = 11,752,298,396.27
5. Step 5: Solve for x
   x = 11,752,298,396.27/111,069.09
6. Step 6: Final answer
   x = 105,810.70