Finding the Fourth Proportional to 13,300.85, 18,355.10 and 7,332.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,300.85 : 18,355.10 = 7,332.50 : x
2. Step 2: Convert to fraction form
   13,300.85/18,355.10 = 7,332.50/x
3. Step 3: Cross multiply
   13,300.85x = 18,355.10 × 7,332.50
4. Step 4: Simplify right side
   13,300.85x = 134,588,669.81
5. Step 5: Solve for x
   x = 134,588,669.81/13,300.85
6. Step 6: Final answer
   x = 10,118.81