Finding the Fourth Proportional to 63,933.98, 88,266.72 and 56,840.80

Step by Step Solution

1. Step 1: Write the proportion equation
   63,933.98 : 88,266.72 = 56,840.80 : x
2. Step 2: Convert to fraction form
   63,933.98/88,266.72 = 56,840.80/x
3. Step 3: Cross multiply
   63,933.98x = 88,266.72 × 56,840.80
4. Step 4: Simplify right side
   63,933.98x = 5,017,150,978.18
5. Step 5: Solve for x
   x = 5,017,150,978.18/63,933.98
6. Step 6: Final answer
   x = 78,473.93