Finding the Fourth Proportional to 89,457.83, 123,463.46 and 57,719.06

Step by Step Solution

1. Step 1: Write the proportion equation
   89,457.83 : 123,463.46 = 57,719.06 : x
2. Step 2: Convert to fraction form
   89,457.83/123,463.46 = 57,719.06/x
3. Step 3: Cross multiply
   89,457.83x = 123,463.46 × 57,719.06
4. Step 4: Simplify right side
   89,457.83x = 7,126,194,382.53
5. Step 5: Solve for x
   x = 7,126,194,382.53/89,457.83
6. Step 6: Final answer
   x = 79,659.82