Finding the Fourth Proportional to 118,786.59, 163,925.69 and 65,070.43

Step by Step Solution

1. Step 1: Write the proportion equation
   118,786.59 : 163,925.69 = 65,070.43 : x
2. Step 2: Convert to fraction form
   118,786.59/163,925.69 = 65,070.43/x
3. Step 3: Cross multiply
   118,786.59x = 163,925.69 × 65,070.43
4. Step 4: Simplify right side
   118,786.59x = 10,666,715,136.35
5. Step 5: Solve for x
   x = 10,666,715,136.35/118,786.59
6. Step 6: Final answer
   x = 89,797.30