Finding the Fourth Proportional to 9,109.34, 12,570.74 and 5,130.44

Step by Step Solution

1. Step 1: Write the proportion equation
   9,109.34 : 12,570.74 = 5,130.44 : x
2. Step 2: Convert to fraction form
   9,109.34/12,570.74 = 5,130.44/x
3. Step 3: Cross multiply
   9,109.34x = 12,570.74 × 5,130.44
4. Step 4: Simplify right side
   9,109.34x = 64,493,427.33
5. Step 5: Solve for x
   x = 64,493,427.33/9,109.34
6. Step 6: Final answer
   x = 7,079.92