Finding the Fourth Proportional to 16,784.34, 25,172.61 and 7,419.26

Step by Step Solution

1. Step 1: Write the proportion equation
   16,784.34 : 25,172.61 = 7,419.26 : x
2. Step 2: Convert to fraction form
   16,784.34/25,172.61 = 7,419.26/x
3. Step 3: Cross multiply
   16,784.34x = 25,172.61 × 7,419.26
4. Step 4: Simplify right side
   16,784.34x = 186,762,012.61
5. Step 5: Solve for x
   x = 186,762,012.61/16,784.34
6. Step 6: Final answer
   x = 11,127.16