Finding the Fourth Proportional to 83,618.83, 115,394.06 and 45,378.38

Step by Step Solution

1. Step 1: Write the proportion equation
   83,618.83 : 115,394.06 = 45,378.38 : x
2. Step 2: Convert to fraction form
   83,618.83/115,394.06 = 45,378.38/x
3. Step 3: Cross multiply
   83,618.83x = 115,394.06 × 45,378.38
4. Step 4: Simplify right side
   83,618.83x = 5,236,395,002.01
5. Step 5: Solve for x
   x = 5,236,395,002.01/83,618.83
6. Step 6: Final answer
   x = 62,622.20