Finding the Fourth Proportional to 12,460.70, 17,196.15 and 7,156.58

Step by Step Solution

1. Step 1: Write the proportion equation
   12,460.70 : 17,196.15 = 7,156.58 : x
2. Step 2: Convert to fraction form
   12,460.70/17,196.15 = 7,156.58/x
3. Step 3: Cross multiply
   12,460.70x = 17,196.15 × 7,156.58
4. Step 4: Simplify right side
   12,460.70x = 123,065,623.17
5. Step 5: Solve for x
   x = 123,065,623.17/12,460.70
6. Step 6: Final answer
   x = 9,876.30