Finding the Fourth Proportional to 89,382.66, 123,358.24 and 57,118.94

Step by Step Solution

1. Step 1: Write the proportion equation
   89,382.66 : 123,358.24 = 57,118.94 : x
2. Step 2: Convert to fraction form
   89,382.66/123,358.24 = 57,118.94/x
3. Step 3: Cross multiply
   89,382.66x = 123,358.24 × 57,118.94
4. Step 4: Simplify right side
   89,382.66x = 7,046,091,909.07
5. Step 5: Solve for x
   x = 7,046,091,909.07/89,382.66
6. Step 6: Final answer
   x = 78,830.64