Finding the Fourth Proportional to 13,780.94, 19,104.56 and 13,032.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,780.94 : 19,104.56 = 13,032.50 : x
2. Step 2: Convert to fraction form
   13,780.94/19,104.56 = 13,032.50/x
3. Step 3: Cross multiply
   13,780.94x = 19,104.56 × 13,032.50
4. Step 4: Simplify right side
   13,780.94x = 248,980,066.39
5. Step 5: Solve for x
   x = 248,980,066.39/13,780.94
6. Step 6: Final answer
   x = 18,066.99