Finding the Fourth Proportional to 12,929.38, 17,842.05 and 7,902.01

Step by Step Solution

1. Step 1: Write the proportion equation
   12,929.38 : 17,842.05 = 7,902.01 : x
2. Step 2: Convert to fraction form
   12,929.38/17,842.05 = 7,902.01/x
3. Step 3: Cross multiply
   12,929.38x = 17,842.05 × 7,902.01
4. Step 4: Simplify right side
   12,929.38x = 140,988,057.52
5. Step 5: Solve for x
   x = 140,988,057.52/12,929.38
6. Step 6: Final answer
   x = 10,904.47