Finding the Fourth Proportional to 359,128.02, 538,850.71 and 188,308.94

Step by Step Solution

1. Step 1: Write the proportion equation
   359,128.02 : 538,850.71 = 188,308.94 : x
2. Step 2: Convert to fraction form
   359,128.02/538,850.71 = 188,308.94/x
3. Step 3: Cross multiply
   359,128.02x = 538,850.71 × 188,308.94
4. Step 4: Simplify right side
   359,128.02x = 101,470,404,874.01
5. Step 5: Solve for x
   x = 101,470,404,874.01/359,128.02
6. Step 6: Final answer
   x = 282,546.61