Finding the Fourth Proportional to 76,456.44, 105,506.28 and 42,467.12

Step by Step Solution

1. Step 1: Write the proportion equation
   76,456.44 : 105,506.28 = 42,467.12 : x
2. Step 2: Convert to fraction form
   76,456.44/105,506.28 = 42,467.12/x
3. Step 3: Cross multiply
   76,456.44x = 105,506.28 × 42,467.12
4. Step 4: Simplify right side
   76,456.44x = 4,480,547,853.51
5. Step 5: Solve for x
   x = 4,480,547,853.51/76,456.44
6. Step 6: Final answer
   x = 58,602.62