Finding the Fourth Proportional to 17,272.68, 25,903.50 and 7,409.31

Step by Step Solution

1. Step 1: Write the proportion equation
   17,272.68 : 25,903.50 = 7,409.31 : x
2. Step 2: Convert to fraction form
   17,272.68/25,903.50 = 7,409.31/x
3. Step 3: Cross multiply
   17,272.68x = 25,903.50 × 7,409.31
4. Step 4: Simplify right side
   17,272.68x = 191,927,061.59
5. Step 5: Solve for x
   x = 191,927,061.59/17,272.68
6. Step 6: Final answer
   x = 11,111.60