Finding the Fourth Proportional to 10,003.77, 15,002.06 and 3,428.19

Step by Step Solution

1. Step 1: Write the proportion equation
   10,003.77 : 15,002.06 = 3,428.19 : x
2. Step 2: Convert to fraction form
   10,003.77/15,002.06 = 3,428.19/x
3. Step 3: Cross multiply
   10,003.77x = 15,002.06 × 3,428.19
4. Step 4: Simplify right side
   10,003.77x = 51,429,894.93
5. Step 5: Solve for x
   x = 51,429,894.93/10,003.77
6. Step 6: Final answer
   x = 5,141.05