Finding the Fourth Proportional to 13,986.06, 19,301.31 and 7,699.02

Step by Step Solution

1. Step 1: Write the proportion equation
   13,986.06 : 19,301.31 = 7,699.02 : x
2. Step 2: Convert to fraction form
   13,986.06/19,301.31 = 7,699.02/x
3. Step 3: Cross multiply
   13,986.06x = 19,301.31 × 7,699.02
4. Step 4: Simplify right side
   13,986.06x = 148,601,171.72
5. Step 5: Solve for x
   x = 148,601,171.72/13,986.06
6. Step 6: Final answer
   x = 10,624.95