Finding the Fourth Proportional to 9,012.78, 12,437.66 and 5,034.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,012.78 : 12,437.66 = 5,034.04 : x
2. Step 2: Convert to fraction form
   9,012.78/12,437.66 = 5,034.04/x
3. Step 3: Cross multiply
   9,012.78x = 12,437.66 × 5,034.04
4. Step 4: Simplify right side
   9,012.78x = 62,611,677.95
5. Step 5: Solve for x
   x = 62,611,677.95/9,012.78
6. Step 6: Final answer
   x = 6,946.99