Finding the Fourth Proportional to 9,243.60, 12,756.20 and 5,051.92

Step by Step Solution

1. Step 1: Write the proportion equation
   9,243.60 : 12,756.20 = 5,051.92 : x
2. Step 2: Convert to fraction form
   9,243.60/12,756.20 = 5,051.92/x
3. Step 3: Cross multiply
   9,243.60x = 12,756.20 × 5,051.92
4. Step 4: Simplify right side
   9,243.60x = 64,443,301.90
5. Step 5: Solve for x
   x = 64,443,301.90/9,243.60
6. Step 6: Final answer
   x = 6,971.67