Finding the Fourth Proportional to 111,644.84, 154,071.64 and 60,658.58

Step by Step Solution

1. Step 1: Write the proportion equation
   111,644.84 : 154,071.64 = 60,658.58 : x
2. Step 2: Convert to fraction form
   111,644.84/154,071.64 = 60,658.58/x
3. Step 3: Cross multiply
   111,644.84x = 154,071.64 × 60,658.58
4. Step 4: Simplify right side
   111,644.84x = 9,345,766,900.67
5. Step 5: Solve for x
   x = 9,345,766,900.67/111,644.84
6. Step 6: Final answer
   x = 83,709.80