Finding the Fourth Proportional to 12,670.86, 17,485.50 and 7,005.36

Step by Step Solution

1. Step 1: Write the proportion equation
   12,670.86 : 17,485.50 = 7,005.36 : x
2. Step 2: Convert to fraction form
   12,670.86/17,485.50 = 7,005.36/x
3. Step 3: Cross multiply
   12,670.86x = 17,485.50 × 7,005.36
4. Step 4: Simplify right side
   12,670.86x = 122,492,222.28
5. Step 5: Solve for x
   x = 122,492,222.28/12,670.86
6. Step 6: Final answer
   x = 9,667.24