Finding the Fourth Proportional to 13,992.89, 19,310.06 and 7,705.13

Step by Step Solution

1. Step 1: Write the proportion equation
   13,992.89 : 19,310.06 = 7,705.13 : x
2. Step 2: Convert to fraction form
   13,992.89/19,310.06 = 7,705.13/x
3. Step 3: Cross multiply
   13,992.89x = 19,310.06 × 7,705.13
4. Step 4: Simplify right side
   13,992.89x = 148,786,445.32
5. Step 5: Solve for x
   x = 148,786,445.32/13,992.89
6. Step 6: Final answer
   x = 10,633.01