Finding the Fourth Proportional to 9,402.28, 12,975.24 and 5,210.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,402.28 : 12,975.24 = 5,210.50 : x
2. Step 2: Convert to fraction form
   9,402.28/12,975.24 = 5,210.50/x
3. Step 3: Cross multiply
   9,402.28x = 12,975.24 × 5,210.50
4. Step 4: Simplify right side
   9,402.28x = 67,607,488.02
5. Step 5: Solve for x
   x = 67,607,488.02/9,402.28
6. Step 6: Final answer
   x = 7,190.54