Finding the Fourth Proportional to 14,215.04, 19,615.59 and 7,840.61

Step by Step Solution

1. Step 1: Write the proportion equation
   14,215.04 : 19,615.59 = 7,840.61 : x
2. Step 2: Convert to fraction form
   14,215.04/19,615.59 = 7,840.61/x
3. Step 3: Cross multiply
   14,215.04x = 19,615.59 × 7,840.61
4. Step 4: Simplify right side
   14,215.04x = 153,798,093.03
5. Step 5: Solve for x
   x = 153,798,093.03/14,215.04
6. Step 6: Final answer
   x = 10,819.40