Finding the Fourth Proportional to 5,061.99, 6,985.79 and 3,071.37

Step by Step Solution

1. Step 1: Write the proportion equation
   5,061.99 : 6,985.79 = 3,071.37 : x
2. Step 2: Convert to fraction form
   5,061.99/6,985.79 = 3,071.37/x
3. Step 3: Cross multiply
   5,061.99x = 6,985.79 × 3,071.37
4. Step 4: Simplify right side
   5,061.99x = 21,455,946.17
5. Step 5: Solve for x
   x = 21,455,946.17/5,061.99
6. Step 6: Final answer
   x = 4,238.64