Finding the Fourth Proportional to 56,622.48, 78,003.96 and 39,594.88

Step by Step Solution

1. Step 1: Write the proportion equation
   56,622.48 : 78,003.96 = 39,594.88 : x
2. Step 2: Convert to fraction form
   56,622.48/78,003.96 = 39,594.88/x
3. Step 3: Cross multiply
   56,622.48x = 78,003.96 × 39,594.88
4. Step 4: Simplify right side
   56,622.48x = 3,088,557,435.72
5. Step 5: Solve for x
   x = 3,088,557,435.72/56,622.48
6. Step 6: Final answer
   x = 54,546.49