Finding the Fourth Proportional to 111,523.41, 153,864.83 and 71,260.74

Step by Step Solution

1. Step 1: Write the proportion equation
   111,523.41 : 153,864.83 = 71,260.74 : x
2. Step 2: Convert to fraction form
   111,523.41/153,864.83 = 71,260.74/x
3. Step 3: Cross multiply
   111,523.41x = 153,864.83 × 71,260.74
4. Step 4: Simplify right side
   111,523.41x = 10,964,521,289.47
5. Step 5: Solve for x
   x = 10,964,521,289.47/111,523.41
6. Step 6: Final answer
   x = 98,315.87