Finding the Fourth Proportional to 4,978.09, 7,461.89 and 2,507.72

Step by Step Solution

1. Step 1: Write the proportion equation
   4,978.09 : 7,461.89 = 2,507.72 : x
2. Step 2: Convert to fraction form
   4,978.09/7,461.89 = 2,507.72/x
3. Step 3: Cross multiply
   4,978.09x = 7,461.89 × 2,507.72
4. Step 4: Simplify right side
   4,978.09x = 18,712,293.48
5. Step 5: Solve for x
   x = 18,712,293.48/4,978.09
6. Step 6: Final answer
   x = 3,758.93