Finding the Fourth Proportional to 315,131.31, 472,573.62 and 109,914.15

Step by Step Solution

1. Step 1: Write the proportion equation
   315,131.31 : 472,573.62 = 109,914.15 : x
2. Step 2: Convert to fraction form
   315,131.31/472,573.62 = 109,914.15/x
3. Step 3: Cross multiply
   315,131.31x = 472,573.62 × 109,914.15
4. Step 4: Simplify right side
   315,131.31x = 51,942,527,754.72
5. Step 5: Solve for x
   x = 51,942,527,754.72/315,131.31
6. Step 6: Final answer
   x = 164,828.20