Finding the Fourth Proportional to 82,686.77, 124,041.72 and 26,513.67

Step by Step Solution

1. Step 1: Write the proportion equation
   82,686.77 : 124,041.72 = 26,513.67 : x
2. Step 2: Convert to fraction form
   82,686.77/124,041.72 = 26,513.67/x
3. Step 3: Cross multiply
   82,686.77x = 124,041.72 × 26,513.67
4. Step 4: Simplify right side
   82,686.77x = 3,288,801,230.31
5. Step 5: Solve for x
   x = 3,288,801,230.31/82,686.77
6. Step 6: Final answer
   x = 39,774.22