Finding the Fourth Proportional to 83,900.31, 115,780.24 and 45,660.61

Step by Step Solution

1. Step 1: Write the proportion equation
   83,900.31 : 115,780.24 = 45,660.61 : x
2. Step 2: Convert to fraction form
   83,900.31/115,780.24 = 45,660.61/x
3. Step 3: Cross multiply
   83,900.31x = 115,780.24 × 45,660.61
4. Step 4: Simplify right side
   83,900.31x = 5,286,596,329.31
5. Step 5: Solve for x
   x = 5,286,596,329.31/83,900.31
6. Step 6: Final answer
   x = 63,010.45