Finding the Fourth Proportional to 47,104, 64,965.92 and 30,987.87

Step by Step Solution

1. Step 1: Write the proportion equation
   47,104 : 64,965.92 = 30,987.87 : x
2. Step 2: Convert to fraction form
   47,104/64,965.92 = 30,987.87/x
3. Step 3: Cross multiply
   47,104x = 64,965.92 × 30,987.87
4. Step 4: Simplify right side
   47,104x = 2,013,155,483.39
5. Step 5: Solve for x
   x = 2,013,155,483.39/47,104
6. Step 6: Final answer
   x = 42,738.53