Finding the Fourth Proportional to 76,613.67, 105,727.67 and 42,158.86

Step by Step Solution

1. Step 1: Write the proportion equation
   76,613.67 : 105,727.67 = 42,158.86 : x
2. Step 2: Convert to fraction form
   76,613.67/105,727.67 = 42,158.86/x
3. Step 3: Cross multiply
   76,613.67x = 105,727.67 × 42,158.86
4. Step 4: Simplify right side
   76,613.67x = 4,457,358,037.66
5. Step 5: Solve for x
   x = 4,457,358,037.66/76,613.67
6. Step 6: Final answer
   x = 58,179.67