Finding the Fourth Proportional to 13,819.56, 19,071.67 and 7,771.71

Step by Step Solution

1. Step 1: Write the proportion equation
   13,819.56 : 19,071.67 = 7,771.71 : x
2. Step 2: Convert to fraction form
   13,819.56/19,071.67 = 7,771.71/x
3. Step 3: Cross multiply
   13,819.56x = 19,071.67 × 7,771.71
4. Step 4: Simplify right side
   13,819.56x = 148,219,498.17
5. Step 5: Solve for x
   x = 148,219,498.17/13,819.56
6. Step 6: Final answer
   x = 10,725.34