Finding the Fourth Proportional to 9,153.51, 12,629.72 and 5,376.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,153.51 : 12,629.72 = 5,376.48 : x
2. Step 2: Convert to fraction form
   9,153.51/12,629.72 = 5,376.48/x
3. Step 3: Cross multiply
   9,153.51x = 12,629.72 × 5,376.48
4. Step 4: Simplify right side
   9,153.51x = 67,903,346.95
5. Step 5: Solve for x
   x = 67,903,346.95/9,153.51
6. Step 6: Final answer
   x = 7,418.29