Finding the Fourth Proportional to 7,637.61, 11,449.37 and 5,298.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,637.61 : 11,449.37 = 5,298.72 : x
2. Step 2: Convert to fraction form
   7,637.61/11,449.37 = 5,298.72/x
3. Step 3: Cross multiply
   7,637.61x = 11,449.37 × 5,298.72
4. Step 4: Simplify right side
   7,637.61x = 60,666,979.31
5. Step 5: Solve for x
   x = 60,666,979.31/7,637.61
6. Step 6: Final answer
   x = 7,943.19