Finding the Fourth Proportional to 12,973.88, 17,899.80 and 7,670.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,973.88 : 17,899.80 = 7,670.48 : x
2. Step 2: Convert to fraction form
   12,973.88/17,899.80 = 7,670.48/x
3. Step 3: Cross multiply
   12,973.88x = 17,899.80 × 7,670.48
4. Step 4: Simplify right side
   12,973.88x = 137,300,057.90
5. Step 5: Solve for x
   x = 137,300,057.90/12,973.88
6. Step 6: Final answer
   x = 10,582.81