Finding the Fourth Proportional to 13,981.12, 19,294.56 and 7,693.76

Step by Step Solution

1. Step 1: Write the proportion equation
   13,981.12 : 19,294.56 = 7,693.76 : x
2. Step 2: Convert to fraction form
   13,981.12/19,294.56 = 7,693.76/x
3. Step 3: Cross multiply
   13,981.12x = 19,294.56 × 7,693.76
4. Step 4: Simplify right side
   13,981.12x = 148,447,713.95
5. Step 5: Solve for x
   x = 148,447,713.95/13,981.12
6. Step 6: Final answer
   x = 10,617.73