Finding the Fourth Proportional to 35,978.21, 53,962.45 and 9,684.53

Step by Step Solution

1. Step 1: Write the proportion equation
   35,978.21 : 53,962.45 = 9,684.53 : x
2. Step 2: Convert to fraction form
   35,978.21/53,962.45 = 9,684.53/x
3. Step 3: Cross multiply
   35,978.21x = 53,962.45 × 9,684.53
4. Step 4: Simplify right side
   35,978.21x = 522,600,647.66
5. Step 5: Solve for x
   x = 522,600,647.66/35,978.21
6. Step 6: Final answer
   x = 14,525.48