Finding the Fourth Proportional to 88,978.50, 122,786.73 and 53,188.29

Step by Step Solution

1. Step 1: Write the proportion equation
   88,978.50 : 122,786.73 = 53,188.29 : x
2. Step 2: Convert to fraction form
   88,978.50/122,786.73 = 53,188.29/x
3. Step 3: Cross multiply
   88,978.50x = 122,786.73 × 53,188.29
4. Step 4: Simplify right side
   88,978.50x = 6,530,816,203.39
5. Step 5: Solve for x
   x = 6,530,816,203.39/88,978.50
6. Step 6: Final answer
   x = 73,397.69