Finding the Fourth Proportional to 132,969.34, 199,528.50 and 70,638.22

Step by Step Solution

1. Step 1: Write the proportion equation
   132,969.34 : 199,528.50 = 70,638.22 : x
2. Step 2: Convert to fraction form
   132,969.34/199,528.50 = 70,638.22/x
3. Step 3: Cross multiply
   132,969.34x = 199,528.50 × 70,638.22
4. Step 4: Simplify right side
   132,969.34x = 14,094,338,079.27
5. Step 5: Solve for x
   x = 14,094,338,079.27/132,969.34
6. Step 6: Final answer
   x = 105,996.90