Finding the Fourth Proportional to 109,897.28, 164,710.80 and 50,650.72

Step by Step Solution

1. Step 1: Write the proportion equation
   109,897.28 : 164,710.80 = 50,650.72 : x
2. Step 2: Convert to fraction form
   109,897.28/164,710.80 = 50,650.72/x
3. Step 3: Cross multiply
   109,897.28x = 164,710.80 × 50,650.72
4. Step 4: Simplify right side
   109,897.28x = 8,342,720,611.78
5. Step 5: Solve for x
   x = 8,342,720,611.78/109,897.28
6. Step 6: Final answer
   x = 75,913.80