Finding the Fourth Proportional to 14,128.66, 21,188.58 and 4,892.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,128.66 : 21,188.58 = 4,892.50 : x
2. Step 2: Convert to fraction form
   14,128.66/21,188.58 = 4,892.50/x
3. Step 3: Cross multiply
   14,128.66x = 21,188.58 × 4,892.50
4. Step 4: Simplify right side
   14,128.66x = 103,665,127.65
5. Step 5: Solve for x
   x = 103,665,127.65/14,128.66
6. Step 6: Final answer
   x = 7,337.22