Finding the Fourth Proportional to 12,429.02, 17,152.45 and 7,124.84

Step by Step Solution

1. Step 1: Write the proportion equation
   12,429.02 : 17,152.45 = 7,124.84 : x
2. Step 2: Convert to fraction form
   12,429.02/17,152.45 = 7,124.84/x
3. Step 3: Cross multiply
   12,429.02x = 17,152.45 × 7,124.84
4. Step 4: Simplify right side
   12,429.02x = 122,208,461.86
5. Step 5: Solve for x
   x = 122,208,461.86/12,429.02
6. Step 6: Final answer
   x = 9,832.51