Finding the Fourth Proportional to 111,770.88, 154,241.28 and 61,470.72

Step by Step Solution

1. Step 1: Write the proportion equation
   111,770.88 : 154,241.28 = 61,470.72 : x
2. Step 2: Convert to fraction form
   111,770.88/154,241.28 = 61,470.72/x
3. Step 3: Cross multiply
   111,770.88x = 154,241.28 × 61,470.72
4. Step 4: Simplify right side
   111,770.88x = 9,481,322,535.32
5. Step 5: Solve for x
   x = 9,481,322,535.32/111,770.88
6. Step 6: Final answer
   x = 84,828.20