Finding the Fourth Proportional to 111,069.59, 153,300.63 and 76,662.62

Step by Step Solution

1. Step 1: Write the proportion equation
   111,069.59 : 153,300.63 = 76,662.62 : x
2. Step 2: Convert to fraction form
   111,069.59/153,300.63 = 76,662.62/x
3. Step 3: Cross multiply
   111,069.59x = 153,300.63 × 76,662.62
4. Step 4: Simplify right side
   111,069.59x = 11,752,427,943.45
5. Step 5: Solve for x
   x = 11,752,427,943.45/111,069.59
6. Step 6: Final answer
   x = 105,811.39