Finding the Fourth Proportional to 28,604.52, 42,895.98 and 13,808.52

Step by Step Solution

1. Step 1: Write the proportion equation
   28,604.52 : 42,895.98 = 13,808.52 : x
2. Step 2: Convert to fraction form
   28,604.52/42,895.98 = 13,808.52/x
3. Step 3: Cross multiply
   28,604.52x = 42,895.98 × 13,808.52
4. Step 4: Simplify right side
   28,604.52x = 592,329,997.75
5. Step 5: Solve for x
   x = 592,329,997.75/28,604.52
6. Step 6: Final answer
   x = 20,707.57