Finding the Fourth Proportional to 71,919.78, 107,030.50 and 69,525.09

Step by Step Solution

1. Step 1: Write the proportion equation
   71,919.78 : 107,030.50 = 69,525.09 : x
2. Step 2: Convert to fraction form
   71,919.78/107,030.50 = 69,525.09/x
3. Step 3: Cross multiply
   71,919.78x = 107,030.50 × 69,525.09
4. Step 4: Simplify right side
   71,919.78x = 7,441,304,663.83
5. Step 5: Solve for x
   x = 7,441,304,663.83/71,919.78
6. Step 6: Final answer
   x = 103,466.74