Finding the Fourth Proportional to 5,123.13, 7,685.50 and 1,836.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,123.13 : 7,685.50 = 1,836.15 : x
2. Step 2: Convert to fraction form
   5,123.13/7,685.50 = 1,836.15/x
3. Step 3: Cross multiply
   5,123.13x = 7,685.50 × 1,836.15
4. Step 4: Simplify right side
   5,123.13x = 14,111,730.83
5. Step 5: Solve for x
   x = 14,111,730.83/5,123.13
6. Step 6: Final answer
   x = 2,754.51