Finding the Fourth Proportional to 9,152.95, 12,630.57 and 5,173.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,152.95 : 12,630.57 = 5,173.84 : x
2. Step 2: Convert to fraction form
   9,152.95/12,630.57 = 5,173.84/x
3. Step 3: Cross multiply
   9,152.95x = 12,630.57 × 5,173.84
4. Step 4: Simplify right side
   9,152.95x = 65,348,548.29
5. Step 5: Solve for x
   x = 65,348,548.29/9,152.95
6. Step 6: Final answer
   x = 7,139.62