Finding the Fourth Proportional to 13,071.42, 19,593.72 and 5,170.77

Step by Step Solution

1. Step 1: Write the proportion equation
   13,071.42 : 19,593.72 = 5,170.77 : x
2. Step 2: Convert to fraction form
   13,071.42/19,593.72 = 5,170.77/x
3. Step 3: Cross multiply
   13,071.42x = 19,593.72 × 5,170.77
4. Step 4: Simplify right side
   13,071.42x = 101,314,619.56
5. Step 5: Solve for x
   x = 101,314,619.56/13,071.42
6. Step 6: Final answer
   x = 7,750.85