Finding the Fourth Proportional to 12,503.90, 17,254.82 and 7,127.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,503.90 : 17,254.82 = 7,127.50 : x
2. Step 2: Convert to fraction form
   12,503.90/17,254.82 = 7,127.50/x
3. Step 3: Cross multiply
   12,503.90x = 17,254.82 × 7,127.50
4. Step 4: Simplify right side
   12,503.90x = 122,983,729.55
5. Step 5: Solve for x
   x = 122,983,729.55/12,503.90
6. Step 6: Final answer
   x = 9,835.63