Finding the Fourth Proportional to 78,693.64, 117,996.71 and 31,304.99

Step by Step Solution

1. Step 1: Write the proportion equation
   78,693.64 : 117,996.71 = 31,304.99 : x
2. Step 2: Convert to fraction form
   78,693.64/117,996.71 = 31,304.99/x
3. Step 3: Cross multiply
   78,693.64x = 117,996.71 × 31,304.99
4. Step 4: Simplify right side
   78,693.64x = 3,693,885,826.58
5. Step 5: Solve for x
   x = 3,693,885,826.58/78,693.64
6. Step 6: Final answer
   x = 46,940.08