Finding the Fourth Proportional to 20,054.52, 30,088.62 and 7,578.15

Step by Step Solution

1. Step 1: Write the proportion equation
   20,054.52 : 30,088.62 = 7,578.15 : x
2. Step 2: Convert to fraction form
   20,054.52/30,088.62 = 7,578.15/x
3. Step 3: Cross multiply
   20,054.52x = 30,088.62 × 7,578.15
4. Step 4: Simplify right side
   20,054.52x = 228,016,075.65
5. Step 5: Solve for x
   x = 228,016,075.65/20,054.52
6. Step 6: Final answer
   x = 11,369.81