Finding the Fourth Proportional to 13,881.59, 19,158.27 and 7,914.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,881.59 : 19,158.27 = 7,914.50 : x
2. Step 2: Convert to fraction form
   13,881.59/19,158.27 = 7,914.50/x
3. Step 3: Cross multiply
   13,881.59x = 19,158.27 × 7,914.50
4. Step 4: Simplify right side
   13,881.59x = 151,628,127.92
5. Step 5: Solve for x
   x = 151,628,127.92/13,881.59
6. Step 6: Final answer
   x = 10,922.97