Finding the Fourth Proportional to 13,475.86, 18,597.69 and 7,812.34

Step by Step Solution

1. Step 1: Write the proportion equation
   13,475.86 : 18,597.69 = 7,812.34 : x
2. Step 2: Convert to fraction form
   13,475.86/18,597.69 = 7,812.34/x
3. Step 3: Cross multiply
   13,475.86x = 18,597.69 × 7,812.34
4. Step 4: Simplify right side
   13,475.86x = 145,291,477.49
5. Step 5: Solve for x
   x = 145,291,477.49/13,475.86
6. Step 6: Final answer
   x = 10,781.61