Finding the Fourth Proportional to 105,003.87, 157,505.50 and 26,118.10

Step by Step Solution

1. Step 1: Write the proportion equation
   105,003.87 : 157,505.50 = 26,118.10 : x
2. Step 2: Convert to fraction form
   105,003.87/157,505.50 = 26,118.10/x
3. Step 3: Cross multiply
   105,003.87x = 157,505.50 × 26,118.10
4. Step 4: Simplify right side
   105,003.87x = 4,113,743,743.11
5. Step 5: Solve for x
   x = 4,113,743,743.11/105,003.87
6. Step 6: Final answer
   x = 39,177.07