Finding the Fourth Proportional to 9,412.83, 12,988.62 and 5,635.47

Step by Step Solution

1. Step 1: Write the proportion equation
   9,412.83 : 12,988.62 = 5,635.47 : x
2. Step 2: Convert to fraction form
   9,412.83/12,988.62 = 5,635.47/x
3. Step 3: Cross multiply
   9,412.83x = 12,988.62 × 5,635.47
4. Step 4: Simplify right side
   9,412.83x = 73,197,003.28
5. Step 5: Solve for x
   x = 73,197,003.28/9,412.83
6. Step 6: Final answer
   x = 7,776.30