Finding the Fourth Proportional to 13,503.47, 18,631.79 and 7,834.93

Step by Step Solution

1. Step 1: Write the proportion equation
   13,503.47 : 18,631.79 = 7,834.93 : x
2. Step 2: Convert to fraction form
   13,503.47/18,631.79 = 7,834.93/x
3. Step 3: Cross multiply
   13,503.47x = 18,631.79 × 7,834.93
4. Step 4: Simplify right side
   13,503.47x = 145,978,770.42
5. Step 5: Solve for x
   x = 145,978,770.42/13,503.47
6. Step 6: Final answer
   x = 10,810.46