Finding the Fourth Proportional to 80,417.64, 110,903.64 and 50,205.72

Step by Step Solution

1. Step 1: Write the proportion equation
   80,417.64 : 110,903.64 = 50,205.72 : x
2. Step 2: Convert to fraction form
   80,417.64/110,903.64 = 50,205.72/x
3. Step 3: Cross multiply
   80,417.64x = 110,903.64 × 50,205.72
4. Step 4: Simplify right side
   80,417.64x = 5,567,997,096.82
5. Step 5: Solve for x
   x = 5,567,997,096.82/80,417.64
6. Step 6: Final answer
   x = 69,238.50