Finding the Fourth Proportional to 12,929.94, 17,842.80 and 7,902.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,929.94 : 17,842.80 = 7,902.56 : x
2. Step 2: Convert to fraction form
   12,929.94/17,842.80 = 7,902.56/x
3. Step 3: Cross multiply
   12,929.94x = 17,842.80 × 7,902.56
4. Step 4: Simplify right side
   12,929.94x = 141,003,797.57
5. Step 5: Solve for x
   x = 141,003,797.57/12,929.94
6. Step 6: Final answer
   x = 10,905.22