Finding the Fourth Proportional to 76,665.24, 105,798.02 and 42,672.99

Step by Step Solution

1. Step 1: Write the proportion equation
   76,665.24 : 105,798.02 = 42,672.99 : x
2. Step 2: Convert to fraction form
   76,665.24/105,798.02 = 42,672.99/x
3. Step 3: Cross multiply
   76,665.24x = 105,798.02 × 42,672.99
4. Step 4: Simplify right side
   76,665.24x = 4,514,717,956.16
5. Step 5: Solve for x
   x = 4,514,717,956.16/76,665.24
6. Step 6: Final answer
   x = 58,888.72