Finding the Fourth Proportional to 9,248.47, 12,762.90 and 5,056.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,248.47 : 12,762.90 = 5,056.72 : x
2. Step 2: Convert to fraction form
   9,248.47/12,762.90 = 5,056.72/x
3. Step 3: Cross multiply
   9,248.47x = 12,762.90 × 5,056.72
4. Step 4: Simplify right side
   9,248.47x = 64,538,411.69
5. Step 5: Solve for x
   x = 64,538,411.69/9,248.47
6. Step 6: Final answer
   x = 6,978.28