Finding the Fourth Proportional to 12,905.67, 17,810.01 and 7,527.95

Step by Step Solution

1. Step 1: Write the proportion equation
   12,905.67 : 17,810.01 = 7,527.95 : x
2. Step 2: Convert to fraction form
   12,905.67/17,810.01 = 7,527.95/x
3. Step 3: Cross multiply
   12,905.67x = 17,810.01 × 7,527.95
4. Step 4: Simplify right side
   12,905.67x = 134,072,864.78
5. Step 5: Solve for x
   x = 134,072,864.78/12,905.67
6. Step 6: Final answer
   x = 10,388.68