Finding the Fourth Proportional to 19,940.31, 29,906.82 and 7,459.02

Step by Step Solution

1. Step 1: Write the proportion equation
   19,940.31 : 29,906.82 = 7,459.02 : x
2. Step 2: Convert to fraction form
   19,940.31/29,906.82 = 7,459.02/x
3. Step 3: Cross multiply
   19,940.31x = 29,906.82 × 7,459.02
4. Step 4: Simplify right side
   19,940.31x = 223,075,568.52
5. Step 5: Solve for x
   x = 223,075,568.52/19,940.31
6. Step 6: Final answer
   x = 11,187.17