Finding the Fourth Proportional to 70,587.86, 105,799.72 and 26,186.29

Step by Step Solution

1. Step 1: Write the proportion equation
   70,587.86 : 105,799.72 = 26,186.29 : x
2. Step 2: Convert to fraction form
   70,587.86/105,799.72 = 26,186.29/x
3. Step 3: Cross multiply
   70,587.86x = 105,799.72 × 26,186.29
4. Step 4: Simplify right side
   70,587.86x = 2,770,501,868.97
5. Step 5: Solve for x
   x = 2,770,501,868.97/70,587.86
6. Step 6: Final answer
   x = 39,248.99