Finding the Fourth Proportional to 13,158.51, 19,735.34 and 5,761.59

Step by Step Solution

1. Step 1: Write the proportion equation
   13,158.51 : 19,735.34 = 5,761.59 : x
2. Step 2: Convert to fraction form
   13,158.51/19,735.34 = 5,761.59/x
3. Step 3: Cross multiply
   13,158.51x = 19,735.34 × 5,761.59
4. Step 4: Simplify right side
   13,158.51x = 113,706,824.51
5. Step 5: Solve for x
   x = 113,706,824.51/13,158.51
6. Step 6: Final answer
   x = 8,641.32