Finding the Fourth Proportional to 74,700.28, 103,053.72 and 49,173.76

Step by Step Solution

1. Step 1: Write the proportion equation
   74,700.28 : 103,053.72 = 49,173.76 : x
2. Step 2: Convert to fraction form
   74,700.28/103,053.72 = 49,173.76/x
3. Step 3: Cross multiply
   74,700.28x = 103,053.72 × 49,173.76
4. Step 4: Simplify right side
   74,700.28x = 5,067,538,894.39
5. Step 5: Solve for x
   x = 5,067,538,894.39/74,700.28
6. Step 6: Final answer
   x = 67,838.29