Finding the Fourth Proportional to 111,763.43, 154,221.86 and 64,018.79

Step by Step Solution

1. Step 1: Write the proportion equation
   111,763.43 : 154,221.86 = 64,018.79 : x
2. Step 2: Convert to fraction form
   111,763.43/154,221.86 = 64,018.79/x
3. Step 3: Cross multiply
   111,763.43x = 154,221.86 × 64,018.79
4. Step 4: Simplify right side
   111,763.43x = 9,873,095,777.55
5. Step 5: Solve for x
   x = 9,873,095,777.55/111,763.43
6. Step 6: Final answer
   x = 88,339.24