Finding the Fourth Proportional to 56,429.73, 84,147.32 and 55,923.82

Step by Step Solution

1. Step 1: Write the proportion equation
   56,429.73 : 84,147.32 = 55,923.82 : x
2. Step 2: Convert to fraction form
   56,429.73/84,147.32 = 55,923.82/x
3. Step 3: Cross multiply
   56,429.73x = 84,147.32 × 55,923.82
4. Step 4: Simplify right side
   56,429.73x = 4,705,839,506.60
5. Step 5: Solve for x
   x = 4,705,839,506.60/56,429.73
6. Step 6: Final answer
   x = 83,392.91