Finding the Fourth Proportional to 118,665.60, 163,758.59 and 64,950.91

Step by Step Solution

1. Step 1: Write the proportion equation
   118,665.60 : 163,758.59 = 64,950.91 : x
2. Step 2: Convert to fraction form
   118,665.60/163,758.59 = 64,950.91/x
3. Step 3: Cross multiply
   118,665.60x = 163,758.59 × 64,950.91
4. Step 4: Simplify right side
   118,665.60x = 10,636,268,706.67
5. Step 5: Solve for x
   x = 10,636,268,706.67/118,665.60
6. Step 6: Final answer
   x = 89,632.28