Finding the Fourth Proportional to 13,995.05, 19,312.02 and 7,707.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,995.05 : 19,312.02 = 7,707.42 : x
2. Step 2: Convert to fraction form
   13,995.05/19,312.02 = 7,707.42/x
3. Step 3: Cross multiply
   13,995.05x = 19,312.02 × 7,707.42
4. Step 4: Simplify right side
   13,995.05x = 148,845,849.19
5. Step 5: Solve for x
   x = 148,845,849.19/13,995.05
6. Step 6: Final answer
   x = 10,635.61