Finding the Fourth Proportional to 19,123.16, 28,685.01 and 5,083.12

Step by Step Solution

1. Step 1: Write the proportion equation
   19,123.16 : 28,685.01 = 5,083.12 : x
2. Step 2: Convert to fraction form
   19,123.16/28,685.01 = 5,083.12/x
3. Step 3: Cross multiply
   19,123.16x = 28,685.01 × 5,083.12
4. Step 4: Simplify right side
   19,123.16x = 145,809,360.06
5. Step 5: Solve for x
   x = 145,809,360.06/19,123.16
6. Step 6: Final answer
   x = 7,624.75