Finding the Fourth Proportional to 19,866.27, 29,799.68 and 5,075.31

Step by Step Solution

1. Step 1: Write the proportion equation
   19,866.27 : 29,799.68 = 5,075.31 : x
2. Step 2: Convert to fraction form
   19,866.27/29,799.68 = 5,075.31/x
3. Step 3: Cross multiply
   19,866.27x = 29,799.68 × 5,075.31
4. Step 4: Simplify right side
   19,866.27x = 151,242,588.52
5. Step 5: Solve for x
   x = 151,242,588.52/19,866.27
6. Step 6: Final answer
   x = 7,613.03