Finding the Fourth Proportional to 12,670.72, 17,482.84 and 7,362.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,670.72 : 17,482.84 = 7,362.80 : x
2. Step 2: Convert to fraction form
   12,670.72/17,482.84 = 7,362.80/x
3. Step 3: Cross multiply
   12,670.72x = 17,482.84 × 7,362.80
4. Step 4: Simplify right side
   12,670.72x = 128,722,654.35
5. Step 5: Solve for x
   x = 128,722,654.35/12,670.72
6. Step 6: Final answer
   x = 10,159.06