Finding the Fourth Proportional to 132,622.18, 183,018.09 and 72,196.18

Step by Step Solution

1. Step 1: Write the proportion equation
   132,622.18 : 183,018.09 = 72,196.18 : x
2. Step 2: Convert to fraction form
   132,622.18/183,018.09 = 72,196.18/x
3. Step 3: Cross multiply
   132,622.18x = 183,018.09 × 72,196.18
4. Step 4: Simplify right side
   132,622.18x = 13,213,206,968.90
5. Step 5: Solve for x
   x = 13,213,206,968.90/132,622.18
6. Step 6: Final answer
   x = 99,630.45