Finding the Fourth Proportional to 10,375.09, 15,554.66 and 5,372.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,375.09 : 15,554.66 = 5,372.10 : x
2. Step 2: Convert to fraction form
   10,375.09/15,554.66 = 5,372.10/x
3. Step 3: Cross multiply
   10,375.09x = 15,554.66 × 5,372.10
4. Step 4: Simplify right side
   10,375.09x = 83,561,192.34
5. Step 5: Solve for x
   x = 83,561,192.34/10,375.09
6. Step 6: Final answer
   x = 8,054.02