Finding the Fourth Proportional to 49,887, 68,837.82 and 30,515.64

Step by Step Solution

1. Step 1: Write the proportion equation
   49,887 : 68,837.82 = 30,515.64 : x
2. Step 2: Convert to fraction form
   49,887/68,837.82 = 30,515.64/x
3. Step 3: Cross multiply
   49,887x = 68,837.82 × 30,515.64
4. Step 4: Simplify right side
   49,887x = 2,100,630,133.50
5. Step 5: Solve for x
   x = 2,100,630,133.50/49,887
6. Step 6: Final answer
   x = 42,107.77