Finding the Fourth Proportional to 118,710.88, 163,819.94 and 64,262.78

Step by Step Solution

1. Step 1: Write the proportion equation
   118,710.88 : 163,819.94 = 64,262.78 : x
2. Step 2: Convert to fraction form
   118,710.88/163,819.94 = 64,262.78/x
3. Step 3: Cross multiply
   118,710.88x = 163,819.94 × 64,262.78
4. Step 4: Simplify right side
   118,710.88x = 10,527,524,763.83
5. Step 5: Solve for x
   x = 10,527,524,763.83/118,710.88
6. Step 6: Final answer
   x = 88,682.05