Finding the Fourth Proportional to 83,200.10, 124,816.35 and 35,815.10

Step by Step Solution

1. Step 1: Write the proportion equation
   83,200.10 : 124,816.35 = 35,815.10 : x
2. Step 2: Convert to fraction form
   83,200.10/124,816.35 = 35,815.10/x
3. Step 3: Cross multiply
   83,200.10x = 124,816.35 × 35,815.10
4. Step 4: Simplify right side
   83,200.10x = 4,470,310,056.89
5. Step 5: Solve for x
   x = 4,470,310,056.89/83,200.10
6. Step 6: Final answer
   x = 53,729.62