Finding the Fourth Proportional to 83,538.68, 115,285.02 and 45,815

Step by Step Solution

1. Step 1: Write the proportion equation
   83,538.68 : 115,285.02 = 45,815 : x
2. Step 2: Convert to fraction form
   83,538.68/115,285.02 = 45,815/x
3. Step 3: Cross multiply
   83,538.68x = 115,285.02 × 45,815
4. Step 4: Simplify right side
   83,538.68x = 5,281,783,191.30
5. Step 5: Solve for x
   x = 5,281,783,191.30/83,538.68
6. Step 6: Final answer
   x = 63,225.60