Finding the Fourth Proportional to 6,071.42, 9,106.83 and 1,688.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,071.42 : 9,106.83 = 1,688.78 : x
2. Step 2: Convert to fraction form
   6,071.42/9,106.83 = 1,688.78/x
3. Step 3: Cross multiply
   6,071.42x = 9,106.83 × 1,688.78
4. Step 4: Simplify right side
   6,071.42x = 15,379,432.37
5. Step 5: Solve for x
   x = 15,379,432.37/6,071.42
6. Step 6: Final answer
   x = 2,533.09