Finding the Fourth Proportional to 83,396.56, 115,087.09 and 45,156.15

Step by Step Solution

1. Step 1: Write the proportion equation
   83,396.56 : 115,087.09 = 45,156.15 : x
2. Step 2: Convert to fraction form
   83,396.56/115,087.09 = 45,156.15/x
3. Step 3: Cross multiply
   83,396.56x = 115,087.09 × 45,156.15
4. Step 4: Simplify right side
   83,396.56x = 5,196,889,899.10
5. Step 5: Solve for x
   x = 5,196,889,899.10/83,396.56
6. Step 6: Final answer
   x = 62,315.40