Finding the Fourth Proportional to 10,375.10, 15,538.35 and 7,070.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,375.10 : 15,538.35 = 7,070.30 : x
2. Step 2: Convert to fraction form
   10,375.10/15,538.35 = 7,070.30/x
3. Step 3: Cross multiply
   10,375.10x = 15,538.35 × 7,070.30
4. Step 4: Simplify right side
   10,375.10x = 109,860,796.01
5. Step 5: Solve for x
   x = 109,860,796.01/10,375.10
6. Step 6: Final answer
   x = 10,588.89