Finding the Fourth Proportional to 10,561.34, 15,836.52 and 4,938.02

Step by Step Solution

1. Step 1: Write the proportion equation
   10,561.34 : 15,836.52 = 4,938.02 : x
2. Step 2: Convert to fraction form
   10,561.34/15,836.52 = 4,938.02/x
3. Step 3: Cross multiply
   10,561.34x = 15,836.52 × 4,938.02
4. Step 4: Simplify right side
   10,561.34x = 78,201,052.49
5. Step 5: Solve for x
   x = 78,201,052.49/10,561.34
6. Step 6: Final answer
   x = 7,404.46