Finding the Fourth Proportional to 63,986, 88,440.52 and 56,374.16

Step by Step Solution

1. Step 1: Write the proportion equation
   63,986 : 88,440.52 = 56,374.16 : x
2. Step 2: Convert to fraction form
   63,986/88,440.52 = 56,374.16/x
3. Step 3: Cross multiply
   63,986x = 88,440.52 × 56,374.16
4. Step 4: Simplify right side
   63,986x = 4,985,760,024.96
5. Step 5: Solve for x
   x = 4,985,760,024.96/63,986
6. Step 6: Final answer
   x = 77,919.55