Finding the Fourth Proportional to 5,597.50, 8,390.78 and 2,312.89

Step by Step Solution

1. Step 1: Write the proportion equation
   5,597.50 : 8,390.78 = 2,312.89 : x
2. Step 2: Convert to fraction form
   5,597.50/8,390.78 = 2,312.89/x
3. Step 3: Cross multiply
   5,597.50x = 8,390.78 × 2,312.89
4. Step 4: Simplify right side
   5,597.50x = 19,406,897.64
5. Step 5: Solve for x
   x = 19,406,897.64/5,597.50
6. Step 6: Final answer
   x = 3,467.07