Finding the Fourth Proportional to 60,449.59, 90,230.69 and 55,996.31

Step by Step Solution

1. Step 1: Write the proportion equation
   60,449.59 : 90,230.69 = 55,996.31 : x
2. Step 2: Convert to fraction form
   60,449.59/90,230.69 = 55,996.31/x
3. Step 3: Cross multiply
   60,449.59x = 90,230.69 × 55,996.31
4. Step 4: Simplify right side
   60,449.59x = 5,052,586,054.32
5. Step 5: Solve for x
   x = 5,052,586,054.32/60,449.59
6. Step 6: Final answer
   x = 83,583.46