Finding the Fourth Proportional to 10,401.18, 15,598.35 and 5,203.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,401.18 : 15,598.35 = 5,203.50 : x
2. Step 2: Convert to fraction form
   10,401.18/15,598.35 = 5,203.50/x
3. Step 3: Cross multiply
   10,401.18x = 15,598.35 × 5,203.50
4. Step 4: Simplify right side
   10,401.18x = 81,166,014.23
5. Step 5: Solve for x
   x = 81,166,014.23/10,401.18
6. Step 6: Final answer
   x = 7,803.54