Finding the Fourth Proportional to 14,007.61, 19,330.50 and 7,634.20

Step by Step Solution

1. Step 1: Write the proportion equation
   14,007.61 : 19,330.50 = 7,634.20 : x
2. Step 2: Convert to fraction form
   14,007.61/19,330.50 = 7,634.20/x
3. Step 3: Cross multiply
   14,007.61x = 19,330.50 × 7,634.20
4. Step 4: Simplify right side
   14,007.61x = 147,572,955.89
5. Step 5: Solve for x
   x = 147,572,955.89/14,007.61
6. Step 6: Final answer
   x = 10,535.20