Finding the Fourth Proportional to 76,665.75, 105,798.73 and 42,673.51

Step by Step Solution

1. Step 1: Write the proportion equation
   76,665.75 : 105,798.73 = 42,673.51 : x
2. Step 2: Convert to fraction form
   76,665.75/105,798.73 = 42,673.51/x
3. Step 3: Cross multiply
   76,665.75x = 105,798.73 × 42,673.51
4. Step 4: Simplify right side
   76,665.75x = 4,514,803,090.68
5. Step 5: Solve for x
   x = 4,514,803,090.68/76,665.75
6. Step 6: Final answer
   x = 58,889.44