Finding the Fourth Proportional to 111,292.78, 153,637.22 and 63,536.89

Step by Step Solution

1. Step 1: Write the proportion equation
   111,292.78 : 153,637.22 = 63,536.89 : x
2. Step 2: Convert to fraction form
   111,292.78/153,637.22 = 63,536.89/x
3. Step 3: Cross multiply
   111,292.78x = 153,637.22 × 63,536.89
4. Step 4: Simplify right side
   111,292.78x = 9,761,630,061.18
5. Step 5: Solve for x
   x = 9,761,630,061.18/111,292.78
6. Step 6: Final answer
   x = 87,711.26