Finding the Fourth Proportional to 105,046.32, 157,569.40 and 31,174.32

Step by Step Solution

1. Step 1: Write the proportion equation
   105,046.32 : 157,569.40 = 31,174.32 : x
2. Step 2: Convert to fraction form
   105,046.32/157,569.40 = 31,174.32/x
3. Step 3: Cross multiply
   105,046.32x = 157,569.40 × 31,174.32
4. Step 4: Simplify right side
   105,046.32x = 4,912,118,897.81
5. Step 5: Solve for x
   x = 4,912,118,897.81/105,046.32
6. Step 6: Final answer
   x = 46,761.46