Finding the Fourth Proportional to 9,156.63, 12,635.37 and 5,328.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,156.63 : 12,635.37 = 5,328.96 : x
2. Step 2: Convert to fraction form
   9,156.63/12,635.37 = 5,328.96/x
3. Step 3: Cross multiply
   9,156.63x = 12,635.37 × 5,328.96
4. Step 4: Simplify right side
   9,156.63x = 67,333,381.32
5. Step 5: Solve for x
   x = 67,333,381.32/9,156.63
6. Step 6: Final answer
   x = 7,353.51