Finding the Fourth Proportional to 111,610.16, 154,029.56 and 61,309.68

Step by Step Solution

1. Step 1: Write the proportion equation
   111,610.16 : 154,029.56 = 61,309.68 : x
2. Step 2: Convert to fraction form
   111,610.16/154,029.56 = 61,309.68/x
3. Step 3: Cross multiply
   111,610.16x = 154,029.56 × 61,309.68
4. Step 4: Simplify right side
   111,610.16x = 9,443,503,034.14
5. Step 5: Solve for x
   x = 9,443,503,034.14/111,610.16
6. Step 6: Final answer
   x = 84,611.50