Finding the Fourth Proportional to 111,771.99, 154,243.88 and 60,783.62

Step by Step Solution

1. Step 1: Write the proportion equation
   111,771.99 : 154,243.88 = 60,783.62 : x
2. Step 2: Convert to fraction form
   111,771.99/154,243.88 = 60,783.62/x
3. Step 3: Cross multiply
   111,771.99x = 154,243.88 × 60,783.62
4. Step 4: Simplify right side
   111,771.99x = 9,375,501,870.71
5. Step 5: Solve for x
   x = 9,375,501,870.71/111,771.99
6. Step 6: Final answer
   x = 83,880.60