Finding the Fourth Proportional to 28,196.29, 42,280.93 and 9,471.13

Step by Step Solution

1. Step 1: Write the proportion equation
   28,196.29 : 42,280.93 = 9,471.13 : x
2. Step 2: Convert to fraction form
   28,196.29/42,280.93 = 9,471.13/x
3. Step 3: Cross multiply
   28,196.29x = 42,280.93 × 9,471.13
4. Step 4: Simplify right side
   28,196.29x = 400,448,184.55
5. Step 5: Solve for x
   x = 400,448,184.55/28,196.29
6. Step 6: Final answer
   x = 14,202.16