Finding the Fourth Proportional to 12,553.99, 18,828.25 and 3,784.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,553.99 : 18,828.25 = 3,784.12 : x
2. Step 2: Convert to fraction form
   12,553.99/18,828.25 = 3,784.12/x
3. Step 3: Cross multiply
   12,553.99x = 18,828.25 × 3,784.12
4. Step 4: Simplify right side
   12,553.99x = 71,248,300.86
5. Step 5: Solve for x
   x = 71,248,300.86/12,553.99
6. Step 6: Final answer
   x = 5,675.35