Finding the Fourth Proportional to 9,134.98, 12,606.03 and 5,156.06

Step by Step Solution

1. Step 1: Write the proportion equation
   9,134.98 : 12,606.03 = 5,156.06 : x
2. Step 2: Convert to fraction form
   9,134.98/12,606.03 = 5,156.06/x
3. Step 3: Cross multiply
   9,134.98x = 12,606.03 × 5,156.06
4. Step 4: Simplify right side
   9,134.98x = 64,997,384.01
5. Step 5: Solve for x
   x = 64,997,384.01/9,134.98
6. Step 6: Final answer
   x = 7,115.22