Finding the Fourth Proportional to 13,030.27, 19,571.54 and 7,775.53

Step by Step Solution

1. Step 1: Write the proportion equation
   13,030.27 : 19,571.54 = 7,775.53 : x
2. Step 2: Convert to fraction form
   13,030.27/19,571.54 = 7,775.53/x
3. Step 3: Cross multiply
   13,030.27x = 19,571.54 × 7,775.53
4. Step 4: Simplify right side
   13,030.27x = 152,179,008.61
5. Step 5: Solve for x
   x = 152,179,008.61/13,030.27
6. Step 6: Final answer
   x = 11,678.89