Finding the Fourth Proportional to 111,842.74, 154,347.24 and 64,105.30

Step by Step Solution

1. Step 1: Write the proportion equation
   111,842.74 : 154,347.24 = 64,105.30 : x
2. Step 2: Convert to fraction form
   111,842.74/154,347.24 = 64,105.30/x
3. Step 3: Cross multiply
   111,842.74x = 154,347.24 × 64,105.30
4. Step 4: Simplify right side
   111,842.74x = 9,894,476,124.37
5. Step 5: Solve for x
   x = 9,894,476,124.37/111,842.74
6. Step 6: Final answer
   x = 88,467.76