Finding the Fourth Proportional to 13,899.84, 19,182.24 and 7,612.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,899.84 : 19,182.24 = 7,612.56 : x
2. Step 2: Convert to fraction form
   13,899.84/19,182.24 = 7,612.56/x
3. Step 3: Cross multiply
   13,899.84x = 19,182.24 × 7,612.56
4. Step 4: Simplify right side
   13,899.84x = 146,025,952.93
5. Step 5: Solve for x
   x = 146,025,952.93/13,899.84
6. Step 6: Final answer
   x = 10,505.59