Finding the Fourth Proportional to 17,503.76, 26,245.56 and 7,638.32

Step by Step Solution

1. Step 1: Write the proportion equation
   17,503.76 : 26,245.56 = 7,638.32 : x
2. Step 2: Convert to fraction form
   17,503.76/26,245.56 = 7,638.32/x
3. Step 3: Cross multiply
   17,503.76x = 26,245.56 × 7,638.32
4. Step 4: Simplify right side
   17,503.76x = 200,471,985.86
5. Step 5: Solve for x
   x = 200,471,985.86/17,503.76
6. Step 6: Final answer
   x = 11,453.08