Finding the Fourth Proportional to 359,900.90, 538,803.69 and 188,716.69

Step by Step Solution

1. Step 1: Write the proportion equation
   359,900.90 : 538,803.69 = 188,716.69 : x
2. Step 2: Convert to fraction form
   359,900.90/538,803.69 = 188,716.69/x
3. Step 3: Cross multiply
   359,900.90x = 538,803.69 × 188,716.69
4. Step 4: Simplify right side
   359,900.90x = 101,681,245,770.78
5. Step 5: Solve for x
   x = 101,681,245,770.78/359,900.90
6. Step 6: Final answer
   x = 282,525.68