Finding the Fourth Proportional to 90,216.72, 124,499.34 and 49,933.26

Step by Step Solution

1. Step 1: Write the proportion equation
   90,216.72 : 124,499.34 = 49,933.26 : x
2. Step 2: Convert to fraction form
   90,216.72/124,499.34 = 49,933.26/x
3. Step 3: Cross multiply
   90,216.72x = 124,499.34 × 49,933.26
4. Step 4: Simplify right side
   90,216.72x = 6,216,657,914.05
5. Step 5: Solve for x
   x = 6,216,657,914.05/90,216.72
6. Step 6: Final answer
   x = 68,908.05