Finding the Fourth Proportional to 190,978.56, 285,066 and 176,904

Step by Step Solution

1. Step 1: Write the proportion equation
   190,978.56 : 285,066 = 176,904 : x
2. Step 2: Convert to fraction form
   190,978.56/285,066 = 176,904/x
3. Step 3: Cross multiply
   190,978.56x = 285,066 × 176,904
4. Step 4: Simplify right side
   190,978.56x = 50,429,315,664
5. Step 5: Solve for x
   x = 50,429,315,664/190,978.56
6. Step 6: Final answer
   x = 264,057.47