Finding the Fourth Proportional to 9,558.16, 13,196.62 and 5,978.53

Step by Step Solution

1. Step 1: Write the proportion equation
   9,558.16 : 13,196.62 = 5,978.53 : x
2. Step 2: Convert to fraction form
   9,558.16/13,196.62 = 5,978.53/x
3. Step 3: Cross multiply
   9,558.16x = 13,196.62 × 5,978.53
4. Step 4: Simplify right side
   9,558.16x = 78,896,388.57
5. Step 5: Solve for x
   x = 78,896,388.57/9,558.16
6. Step 6: Final answer
   x = 8,254.35