Finding the Fourth Proportional to 13,141.72, 19,715.62 and 4,376.71

Step by Step Solution

1. Step 1: Write the proportion equation
   13,141.72 : 19,715.62 = 4,376.71 : x
2. Step 2: Convert to fraction form
   13,141.72/19,715.62 = 4,376.71/x
3. Step 3: Cross multiply
   13,141.72x = 19,715.62 × 4,376.71
4. Step 4: Simplify right side
   13,141.72x = 86,289,551.21
5. Step 5: Solve for x
   x = 86,289,551.21/13,141.72
6. Step 6: Final answer
   x = 6,566.08