Finding the Fourth Proportional to 78,663.83, 108,555.45 and 42,853.82

Step by Step Solution

1. Step 1: Write the proportion equation
   78,663.83 : 108,555.45 = 42,853.82 : x
2. Step 2: Convert to fraction form
   78,663.83/108,555.45 = 42,853.82/x
3. Step 3: Cross multiply
   78,663.83x = 108,555.45 × 42,853.82
4. Step 4: Simplify right side
   78,663.83x = 4,652,015,714.32
5. Step 5: Solve for x
   x = 4,652,015,714.32/78,663.83
6. Step 6: Final answer
   x = 59,137.93