Finding the Fourth Proportional to 9,365.86, 12,925.19 and 5,117.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,365.86 : 12,925.19 = 5,117.31 : x
2. Step 2: Convert to fraction form
   9,365.86/12,925.19 = 5,117.31/x
3. Step 3: Cross multiply
   9,365.86x = 12,925.19 × 5,117.31
4. Step 4: Simplify right side
   9,365.86x = 66,142,216.83
5. Step 5: Solve for x
   x = 66,142,216.83/9,365.86
6. Step 6: Final answer
   x = 7,062.05