Finding the Fourth Proportional to 111,691.17, 154,133.69 and 60,703.79

Step by Step Solution

1. Step 1: Write the proportion equation
   111,691.17 : 154,133.69 = 60,703.79 : x
2. Step 2: Convert to fraction form
   111,691.17/154,133.69 = 60,703.79/x
3. Step 3: Cross multiply
   111,691.17x = 154,133.69 × 60,703.79
4. Step 4: Simplify right side
   111,691.17x = 9,356,498,075.50
5. Step 5: Solve for x
   x = 9,356,498,075.50/111,691.17
6. Step 6: Final answer
   x = 83,771.15