Finding the Fourth Proportional to 47,103, 65,019.20 and 31,192.60

Step by Step Solution

1. Step 1: Write the proportion equation
   47,103 : 65,019.20 = 31,192.60 : x
2. Step 2: Convert to fraction form
   47,103/65,019.20 = 31,192.60/x
3. Step 3: Cross multiply
   47,103x = 65,019.20 × 31,192.60
4. Step 4: Simplify right side
   47,103x = 2,028,117,897.92
5. Step 5: Solve for x
   x = 2,028,117,897.92/47,103
6. Step 6: Final answer
   x = 43,057.09