Finding the Fourth Proportional to 105,404.64, 158,095.28 and 26,518.88

Step by Step Solution

1. Step 1: Write the proportion equation
   105,404.64 : 158,095.28 = 26,518.88 : x
2. Step 2: Convert to fraction form
   105,404.64/158,095.28 = 26,518.88/x
3. Step 3: Cross multiply
   105,404.64x = 158,095.28 × 26,518.88
4. Step 4: Simplify right side
   105,404.64x = 4,192,509,758.89
5. Step 5: Solve for x
   x = 4,192,509,758.89/105,404.64
6. Step 6: Final answer
   x = 39,775.38