Finding the Fourth Proportional to 50,659, 69,909.42 and 28,307.32

Step by Step Solution

1. Step 1: Write the proportion equation
   50,659 : 69,909.42 = 28,307.32 : x
2. Step 2: Convert to fraction form
   50,659/69,909.42 = 28,307.32/x
3. Step 3: Cross multiply
   50,659x = 69,909.42 × 28,307.32
4. Step 4: Simplify right side
   50,659x = 1,978,948,322.95
5. Step 5: Solve for x
   x = 1,978,948,322.95/50,659
6. Step 6: Final answer
   x = 39,064.10