Finding the Fourth Proportional to 149,715, 206,606.70 and 82,647.48

Step by Step Solution

1. Step 1: Write the proportion equation
   149,715 : 206,606.70 = 82,647.48 : x
2. Step 2: Convert to fraction form
   149,715/206,606.70 = 82,647.48/x
3. Step 3: Cross multiply
   149,715x = 206,606.70 × 82,647.48
4. Step 4: Simplify right side
   149,715x = 17,075,523,106.12
5. Step 5: Solve for x
   x = 17,075,523,106.12/149,715
6. Step 6: Final answer
   x = 114,053.52