Finding the Fourth Proportional to 14,152.16, 21,222.12 and 7,127.84

Step by Step Solution

1. Step 1: Write the proportion equation
   14,152.16 : 21,222.12 = 7,127.84 : x
2. Step 2: Convert to fraction form
   14,152.16/21,222.12 = 7,127.84/x
3. Step 3: Cross multiply
   14,152.16x = 21,222.12 × 7,127.84
4. Step 4: Simplify right side
   14,152.16x = 151,267,875.82
5. Step 5: Solve for x
   x = 151,267,875.82/14,152.16
6. Step 6: Final answer
   x = 10,688.68