Finding the Fourth Proportional to 105,038.10, 157,557.15 and 31,166.10

Step by Step Solution

1. Step 1: Write the proportion equation
   105,038.10 : 157,557.15 = 31,166.10 : x
2. Step 2: Convert to fraction form
   105,038.10/157,557.15 = 31,166.10/x
3. Step 3: Cross multiply
   105,038.10x = 157,557.15 × 31,166.10
4. Step 4: Simplify right side
   105,038.10x = 4,910,441,892.62
5. Step 5: Solve for x
   x = 4,910,441,892.62/105,038.10
6. Step 6: Final answer
   x = 46,749.15