Finding the Fourth Proportional to 111,941.94, 168,002.82 and 55,779.78

Step by Step Solution

1. Step 1: Write the proportion equation
   111,941.94 : 168,002.82 = 55,779.78 : x
2. Step 2: Convert to fraction form
   111,941.94/168,002.82 = 55,779.78/x
3. Step 3: Cross multiply
   111,941.94x = 168,002.82 × 55,779.78
4. Step 4: Simplify right side
   111,941.94x = 9,371,160,338.98
5. Step 5: Solve for x
   x = 9,371,160,338.98/111,941.94
6. Step 6: Final answer
   x = 83,714.47