Finding the Fourth Proportional to 13,827.41, 19,081.58 and 7,539.78

Step by Step Solution

1. Step 1: Write the proportion equation
   13,827.41 : 19,081.58 = 7,539.78 : x
2. Step 2: Convert to fraction form
   13,827.41/19,081.58 = 7,539.78/x
3. Step 3: Cross multiply
   13,827.41x = 19,081.58 × 7,539.78
4. Step 4: Simplify right side
   13,827.41x = 143,870,877.55
5. Step 5: Solve for x
   x = 143,870,877.55/13,827.41
6. Step 6: Final answer
   x = 10,404.76