Finding the Fourth Proportional to 55,288.82, 76,300.53 and 31,416.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,288.82 : 76,300.53 = 31,416.50 : x
2. Step 2: Convert to fraction form
   55,288.82/76,300.53 = 31,416.50/x
3. Step 3: Cross multiply
   55,288.82x = 76,300.53 × 31,416.50
4. Step 4: Simplify right side
   55,288.82x = 2,397,095,600.75
5. Step 5: Solve for x
   x = 2,397,095,600.75/55,288.82
6. Step 6: Final answer
   x = 43,355.88