Finding the Fourth Proportional to 7,188.72, 9,926.68 and 5,303.58

Step by Step Solution

1. Step 1: Write the proportion equation
   7,188.72 : 9,926.68 = 5,303.58 : x
2. Step 2: Convert to fraction form
   7,188.72/9,926.68 = 5,303.58/x
3. Step 3: Cross multiply
   7,188.72x = 9,926.68 × 5,303.58
4. Step 4: Simplify right side
   7,188.72x = 52,646,941.51
5. Step 5: Solve for x
   x = 52,646,941.51/7,188.72
6. Step 6: Final answer
   x = 7,323.55