Finding the Fourth Proportional to 386,505.94, 579,763.38 and 116,636.42

Step by Step Solution

1. Step 1: Write the proportion equation
   386,505.94 : 579,763.38 = 116,636.42 : x
2. Step 2: Convert to fraction form
   386,505.94/579,763.38 = 116,636.42/x
3. Step 3: Cross multiply
   386,505.94x = 579,763.38 × 116,636.42
4. Step 4: Simplify right side
   386,505.94x = 67,621,525,090.30
5. Step 5: Solve for x
   x = 67,621,525,090.30/386,505.94
6. Step 6: Final answer
   x = 174,955.98