Finding the Fourth Proportional to 13,905.96, 19,191.59 and 7,938.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,905.96 : 19,191.59 = 7,938.52 : x
2. Step 2: Convert to fraction form
   13,905.96/19,191.59 = 7,938.52/x
3. Step 3: Cross multiply
   13,905.96x = 19,191.59 × 7,938.52
4. Step 4: Simplify right side
   13,905.96x = 152,352,763.14
5. Step 5: Solve for x
   x = 152,352,763.14/13,905.96
6. Step 6: Final answer
   x = 10,955.94