Finding the Fourth Proportional to 92,987.24, 128,350.50 and 63,196.52

Step by Step Solution

1. Step 1: Write the proportion equation
   92,987.24 : 128,350.50 = 63,196.52 : x
2. Step 2: Convert to fraction form
   92,987.24/128,350.50 = 63,196.52/x
3. Step 3: Cross multiply
   92,987.24x = 128,350.50 × 63,196.52
4. Step 4: Simplify right side
   92,987.24x = 8,111,304,940.26
5. Step 5: Solve for x
   x = 8,111,304,940.26/92,987.24
6. Step 6: Final answer
   x = 87,230.30