Finding the Fourth Proportional to 451,402, 677,144.04 and 118,978

Step by Step Solution

1. Step 1: Write the proportion equation
   451,402 : 677,144.04 = 118,978 : x
2. Step 2: Convert to fraction form
   451,402/677,144.04 = 118,978/x
3. Step 3: Cross multiply
   451,402x = 677,144.04 × 118,978
4. Step 4: Simplify right side
   451,402x = 80,565,243,591.12
5. Step 5: Solve for x
   x = 80,565,243,591.12/451,402
6. Step 6: Final answer
   x = 178,477.82