Finding the Fourth Proportional to 78,849.15, 108,825.95 and 47,020.10

Step by Step Solution

1. Step 1: Write the proportion equation
   78,849.15 : 108,825.95 = 47,020.10 : x
2. Step 2: Convert to fraction form
   78,849.15/108,825.95 = 47,020.10/x
3. Step 3: Cross multiply
   78,849.15x = 108,825.95 × 47,020.10
4. Step 4: Simplify right side
   78,849.15x = 5,117,006,272.36
5. Step 5: Solve for x
   x = 5,117,006,272.36/78,849.15
6. Step 6: Final answer
   x = 64,896.15