Finding the Fourth Proportional to 14,086.76, 21,099.42 and 7,054.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,086.76 : 21,099.42 = 7,054.50 : x
2. Step 2: Convert to fraction form
   14,086.76/21,099.42 = 7,054.50/x
3. Step 3: Cross multiply
   14,086.76x = 21,099.42 × 7,054.50
4. Step 4: Simplify right side
   14,086.76x = 148,845,963.97
5. Step 5: Solve for x
   x = 148,845,963.97/14,086.76
6. Step 6: Final answer
   x = 10,566.38