Finding the Fourth Proportional to 28,479.18, 42,462.31 and 26,108.00

Step by Step Solution

1. Step 1: Write the proportion equation
   28,479.18 : 42,462.31 = 26,108.00 : x
2. Step 2: Convert to fraction form
   28,479.18/42,462.31 = 26,108.00/x
3. Step 3: Cross multiply
   28,479.18x = 42,462.31 × 26,108.00
4. Step 4: Simplify right side
   28,479.18x = 1,108,605,910.80
5. Step 5: Solve for x
   x = 1,108,605,910.80/28,479.18
6. Step 6: Final answer
   x = 38,926.89