Finding the Fourth Proportional to 90,105.71, 124,339.77 and 49,814.03

Step by Step Solution

1. Step 1: Write the proportion equation
   90,105.71 : 124,339.77 = 49,814.03 : x
2. Step 2: Convert to fraction form
   90,105.71/124,339.77 = 49,814.03/x
3. Step 3: Cross multiply
   90,105.71x = 124,339.77 × 49,814.03
4. Step 4: Simplify right side
   90,105.71x = 6,193,865,343.82
5. Step 5: Solve for x
   x = 6,193,865,343.82/90,105.71
6. Step 6: Final answer
   x = 68,739.99