Finding the Fourth Proportional to 17,870.84, 26,809 and 5,389.22

Step by Step Solution

1. Step 1: Write the proportion equation
   17,870.84 : 26,809 = 5,389.22 : x
2. Step 2: Convert to fraction form
   17,870.84/26,809 = 5,389.22/x
3. Step 3: Cross multiply
   17,870.84x = 26,809 × 5,389.22
4. Step 4: Simplify right side
   17,870.84x = 144,479,598.98
5. Step 5: Solve for x
   x = 144,479,598.98/17,870.84
6. Step 6: Final answer
   x = 8,084.66