Finding the Fourth Proportional to 83,123.80, 124,740.26 and 30,533.72

Step by Step Solution

1. Step 1: Write the proportion equation
   83,123.80 : 124,740.26 = 30,533.72 : x
2. Step 2: Convert to fraction form
   83,123.80/124,740.26 = 30,533.72/x
3. Step 3: Cross multiply
   83,123.80x = 124,740.26 × 30,533.72
4. Step 4: Simplify right side
   83,123.80x = 3,808,784,171.57
5. Step 5: Solve for x
   x = 3,808,784,171.57/83,123.80
6. Step 6: Final answer
   x = 45,820.62