Finding the Fourth Proportional to 10,074.18, 13,902.39 and 5,598.21

Step by Step Solution

1. Step 1: Write the proportion equation
   10,074.18 : 13,902.39 = 5,598.21 : x
2. Step 2: Convert to fraction form
   10,074.18/13,902.39 = 5,598.21/x
3. Step 3: Cross multiply
   10,074.18x = 13,902.39 × 5,598.21
4. Step 4: Simplify right side
   10,074.18x = 77,828,498.72
5. Step 5: Solve for x
   x = 77,828,498.72/10,074.18
6. Step 6: Final answer
   x = 7,725.54