Finding the Fourth Proportional to 56,429.25, 84,705.23 and 42,429.41

Step by Step Solution

1. Step 1: Write the proportion equation
   56,429.25 : 84,705.23 = 42,429.41 : x
2. Step 2: Convert to fraction form
   56,429.25/84,705.23 = 42,429.41/x
3. Step 3: Cross multiply
   56,429.25x = 84,705.23 × 42,429.41
4. Step 4: Simplify right side
   56,429.25x = 3,593,992,932.81
5. Step 5: Solve for x
   x = 3,593,992,932.81/56,429.25
6. Step 6: Final answer
   x = 63,690.25