Finding the Fourth Proportional to 17,075.12, 23,566.72 and 13,565.12

Step by Step Solution

1. Step 1: Write the proportion equation
   17,075.12 : 23,566.72 = 13,565.12 : x
2. Step 2: Convert to fraction form
   17,075.12/23,566.72 = 13,565.12/x
3. Step 3: Cross multiply
   17,075.12x = 23,566.72 × 13,565.12
4. Step 4: Simplify right side
   17,075.12x = 319,685,384.81
5. Step 5: Solve for x
   x = 319,685,384.81/17,075.12
6. Step 6: Final answer
   x = 18,722.29