Finding the Fourth Proportional to 9,192.78, 12,686.18 and 5,001.03

Step by Step Solution

1. Step 1: Write the proportion equation
   9,192.78 : 12,686.18 = 5,001.03 : x
2. Step 2: Convert to fraction form
   9,192.78/12,686.18 = 5,001.03/x
3. Step 3: Cross multiply
   9,192.78x = 12,686.18 × 5,001.03
4. Step 4: Simplify right side
   9,192.78x = 63,443,941.76
5. Step 5: Solve for x
   x = 63,443,941.76/9,192.78
6. Step 6: Final answer
   x = 6,901.50