Finding the Fourth Proportional to 9,036.12, 12,470.54 and 5,057.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,036.12 : 12,470.54 = 5,057.94 : x
2. Step 2: Convert to fraction form
   9,036.12/12,470.54 = 5,057.94/x
3. Step 3: Cross multiply
   9,036.12x = 12,470.54 × 5,057.94
4. Step 4: Simplify right side
   9,036.12x = 63,075,217.80
5. Step 5: Solve for x
   x = 63,075,217.80/9,036.12
6. Step 6: Final answer
   x = 6,980.34