Finding the Fourth Proportional to 64,490.18, 88,993.89 and 35,811.32

Step by Step Solution

1. Step 1: Write the proportion equation
   64,490.18 : 88,993.89 = 35,811.32 : x
2. Step 2: Convert to fraction form
   64,490.18/88,993.89 = 35,811.32/x
3. Step 3: Cross multiply
   64,490.18x = 88,993.89 × 35,811.32
4. Step 4: Simplify right side
   64,490.18x = 3,186,988,227.87
5. Step 5: Solve for x
   x = 3,186,988,227.87/64,490.18
6. Step 6: Final answer
   x = 49,418.20