Finding the Fourth Proportional to 9,043.42, 12,478.80 and 5,063.89

Step by Step Solution

1. Step 1: Write the proportion equation
   9,043.42 : 12,478.80 = 5,063.89 : x
2. Step 2: Convert to fraction form
   9,043.42/12,478.80 = 5,063.89/x
3. Step 3: Cross multiply
   9,043.42x = 12,478.80 × 5,063.89
4. Step 4: Simplify right side
   9,043.42x = 63,191,270.53
5. Step 5: Solve for x
   x = 63,191,270.53/9,043.42
6. Step 6: Final answer
   x = 6,987.54