Finding the Fourth Proportional to 105,174.63, 157,761.94 and 31,302.63

Step by Step Solution

1. Step 1: Write the proportion equation
   105,174.63 : 157,761.94 = 31,302.63 : x
2. Step 2: Convert to fraction form
   105,174.63/157,761.94 = 31,302.63/x
3. Step 3: Cross multiply
   105,174.63x = 157,761.94 × 31,302.63
4. Step 4: Simplify right side
   105,174.63x = 4,938,363,635.90
5. Step 5: Solve for x
   x = 4,938,363,635.90/105,174.63
6. Step 6: Final answer
   x = 46,953.94