Finding the Fourth Proportional to 6,118.86, 8,436.57 and 5,173.02

Step by Step Solution

1. Step 1: Write the proportion equation
   6,118.86 : 8,436.57 = 5,173.02 : x
2. Step 2: Convert to fraction form
   6,118.86/8,436.57 = 5,173.02/x
3. Step 3: Cross multiply
   6,118.86x = 8,436.57 × 5,173.02
4. Step 4: Simplify right side
   6,118.86x = 43,642,545.34
5. Step 5: Solve for x
   x = 43,642,545.34/6,118.86
6. Step 6: Final answer
   x = 7,132.46