Finding the Fourth Proportional to 76,500.09, 105,568.03 and 42,507.71

Step by Step Solution

1. Step 1: Write the proportion equation
   76,500.09 : 105,568.03 = 42,507.71 : x
2. Step 2: Convert to fraction form
   76,500.09/105,568.03 = 42,507.71/x
3. Step 3: Cross multiply
   76,500.09x = 105,568.03 × 42,507.71
4. Step 4: Simplify right side
   76,500.09x = 4,487,454,676.67
5. Step 5: Solve for x
   x = 4,487,454,676.67/76,500.09
6. Step 6: Final answer
   x = 58,659.47