Finding the Fourth Proportional to 13,601.42, 20,385.72 and 7,024.01

Step by Step Solution

1. Step 1: Write the proportion equation
   13,601.42 : 20,385.72 = 7,024.01 : x
2. Step 2: Convert to fraction form
   13,601.42/20,385.72 = 7,024.01/x
3. Step 3: Cross multiply
   13,601.42x = 20,385.72 × 7,024.01
4. Step 4: Simplify right side
   13,601.42x = 143,189,501.14
5. Step 5: Solve for x
   x = 143,189,501.14/13,601.42
6. Step 6: Final answer
   x = 10,527.54