Finding the Fourth Proportional to 7,900.06, 10,897.50 and 5,105.56

Step by Step Solution

1. Step 1: Write the proportion equation
   7,900.06 : 10,897.50 = 5,105.56 : x
2. Step 2: Convert to fraction form
   7,900.06/10,897.50 = 5,105.56/x
3. Step 3: Cross multiply
   7,900.06x = 10,897.50 × 5,105.56
4. Step 4: Simplify right side
   7,900.06x = 55,637,840.10
5. Step 5: Solve for x
   x = 55,637,840.10/7,900.06
6. Step 6: Final answer
   x = 7,042.71