Finding the Fourth Proportional to 105,019.80, 157,529.37 and 26,134.05

Step by Step Solution

1. Step 1: Write the proportion equation
   105,019.80 : 157,529.37 = 26,134.05 : x
2. Step 2: Convert to fraction form
   105,019.80/157,529.37 = 26,134.05/x
3. Step 3: Cross multiply
   105,019.80x = 157,529.37 × 26,134.05
4. Step 4: Simplify right side
   105,019.80x = 4,116,880,432.05
5. Step 5: Solve for x
   x = 4,116,880,432.05/105,019.80
6. Step 6: Final answer
   x = 39,200.99