Finding the Fourth Proportional to 83,505, 115,236.90 and 45,779.52

Step by Step Solution

1. Step 1: Write the proportion equation
   83,505 : 115,236.90 = 45,779.52 : x
2. Step 2: Convert to fraction form
   83,505/115,236.90 = 45,779.52/x
3. Step 3: Cross multiply
   83,505x = 115,236.90 × 45,779.52
4. Step 4: Simplify right side
   83,505x = 5,275,489,968.29
5. Step 5: Solve for x
   x = 5,275,489,968.29/83,505
6. Step 6: Final answer
   x = 63,175.74