Finding the Fourth Proportional to 9,347.17, 12,898.73 and 5,155.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,347.17 : 12,898.73 = 5,155.42 : x
2. Step 2: Convert to fraction form
   9,347.17/12,898.73 = 5,155.42/x
3. Step 3: Cross multiply
   9,347.17x = 12,898.73 × 5,155.42
4. Step 4: Simplify right side
   9,347.17x = 66,498,312.59
5. Step 5: Solve for x
   x = 66,498,312.59/9,347.17
6. Step 6: Final answer
   x = 7,114.27