Finding the Fourth Proportional to 78,825.12, 117,960.30 and 49,256.88

Step by Step Solution

1. Step 1: Write the proportion equation
   78,825.12 : 117,960.30 = 49,256.88 : x
2. Step 2: Convert to fraction form
   78,825.12/117,960.30 = 49,256.88/x
3. Step 3: Cross multiply
   78,825.12x = 117,960.30 × 49,256.88
4. Step 4: Simplify right side
   78,825.12x = 5,810,356,341.86
5. Step 5: Solve for x
   x = 5,810,356,341.86/78,825.12
6. Step 6: Final answer
   x = 73,711.99