Finding the Fourth Proportional to 64,397.30, 96,616.20 and 31,118.45

Step by Step Solution

1. Step 1: Write the proportion equation
   64,397.30 : 96,616.20 = 31,118.45 : x
2. Step 2: Convert to fraction form
   64,397.30/96,616.20 = 31,118.45/x
3. Step 3: Cross multiply
   64,397.30x = 96,616.20 × 31,118.45
4. Step 4: Simplify right side
   64,397.30x = 3,006,546,388.89
5. Step 5: Solve for x
   x = 3,006,546,388.89/64,397.30
6. Step 6: Final answer
   x = 46,687.46