Finding the Fourth Proportional to 111,456.29, 153,809.69 and 63,710.69

Step by Step Solution

1. Step 1: Write the proportion equation
   111,456.29 : 153,809.69 = 63,710.69 : x
2. Step 2: Convert to fraction form
   111,456.29/153,809.69 = 63,710.69/x
3. Step 3: Cross multiply
   111,456.29x = 153,809.69 × 63,710.69
4. Step 4: Simplify right side
   111,456.29x = 9,799,320,390.98
5. Step 5: Solve for x
   x = 9,799,320,390.98/111,456.29
6. Step 6: Final answer
   x = 87,920.75