Finding the Fourth Proportional to 103,904.88, 155,614.32 and 51,144.72

Step by Step Solution

1. Step 1: Write the proportion equation
   103,904.88 : 155,614.32 = 51,144.72 : x
2. Step 2: Convert to fraction form
   103,904.88/155,614.32 = 51,144.72/x
3. Step 3: Cross multiply
   103,904.88x = 155,614.32 × 51,144.72
4. Step 4: Simplify right side
   103,904.88x = 7,958,850,824.39
5. Step 5: Solve for x
   x = 7,958,850,824.39/103,904.88
6. Step 6: Final answer
   x = 76,597.47