Finding the Fourth Proportional to 10,059.13, 13,880.41 and 5,581.81

Step by Step Solution

1. Step 1: Write the proportion equation
   10,059.13 : 13,880.41 = 5,581.81 : x
2. Step 2: Convert to fraction form
   10,059.13/13,880.41 = 5,581.81/x
3. Step 3: Cross multiply
   10,059.13x = 13,880.41 × 5,581.81
4. Step 4: Simplify right side
   10,059.13x = 77,477,811.34
5. Step 5: Solve for x
   x = 77,477,811.34/10,059.13
6. Step 6: Final answer
   x = 7,702.24