Finding the Fourth Proportional to 56,388.96, 84,085.83 and 55,882.78

Step by Step Solution

1. Step 1: Write the proportion equation
   56,388.96 : 84,085.83 = 55,882.78 : x
2. Step 2: Convert to fraction form
   56,388.96/84,085.83 = 55,882.78/x
3. Step 3: Cross multiply
   56,388.96x = 84,085.83 × 55,882.78
4. Step 4: Simplify right side
   56,388.96x = 4,698,949,728.79
5. Step 5: Solve for x
   x = 4,698,949,728.79/56,388.96
6. Step 6: Final answer
   x = 83,331.02