Finding the Fourth Proportional to 109,526.82, 163,969.89 and 99,021

Step by Step Solution

1. Step 1: Write the proportion equation
   109,526.82 : 163,969.89 = 99,021 : x
2. Step 2: Convert to fraction form
   109,526.82/163,969.89 = 99,021/x
3. Step 3: Cross multiply
   109,526.82x = 163,969.89 × 99,021
4. Step 4: Simplify right side
   109,526.82x = 16,236,462,477.69
5. Step 5: Solve for x
   x = 16,236,462,477.69/109,526.82
6. Step 6: Final answer
   x = 148,241.89