Finding the Fourth Proportional to 13,904.04, 19,188.18 and 7,616.28

Step by Step Solution

1. Step 1: Write the proportion equation
   13,904.04 : 19,188.18 = 7,616.28 : x
2. Step 2: Convert to fraction form
   13,904.04/19,188.18 = 7,616.28/x
3. Step 3: Cross multiply
   13,904.04x = 19,188.18 × 7,616.28
4. Step 4: Simplify right side
   13,904.04x = 146,142,551.57
5. Step 5: Solve for x
   x = 146,142,551.57/13,904.04
6. Step 6: Final answer
   x = 10,510.80