Finding the Fourth Proportional to 105,131.48, 157,638.88 and 34,972.52

Step by Step Solution

1. Step 1: Write the proportion equation
   105,131.48 : 157,638.88 = 34,972.52 : x
2. Step 2: Convert to fraction form
   105,131.48/157,638.88 = 34,972.52/x
3. Step 3: Cross multiply
   105,131.48x = 157,638.88 × 34,972.52
4. Step 4: Simplify right side
   105,131.48x = 5,513,028,883.58
5. Step 5: Solve for x
   x = 5,513,028,883.58/105,131.48
6. Step 6: Final answer
   x = 52,439.37