Finding the Fourth Proportional to 7,117.86, 9,822.72 and 3,973.68

Step by Step Solution

1. Step 1: Write the proportion equation
   7,117.86 : 9,822.72 = 3,973.68 : x
2. Step 2: Convert to fraction form
   7,117.86/9,822.72 = 3,973.68/x
3. Step 3: Cross multiply
   7,117.86x = 9,822.72 × 3,973.68
4. Step 4: Simplify right side
   7,117.86x = 39,032,346.01
5. Step 5: Solve for x
   x = 39,032,346.01/7,117.86
6. Step 6: Final answer
   x = 5,483.72