Finding the Fourth Proportional to 42,369.87, 63,554.37 and 10,779.94

Step by Step Solution

1. Step 1: Write the proportion equation
   42,369.87 : 63,554.37 = 10,779.94 : x
2. Step 2: Convert to fraction form
   42,369.87/63,554.37 = 10,779.94/x
3. Step 3: Cross multiply
   42,369.87x = 63,554.37 × 10,779.94
4. Step 4: Simplify right side
   42,369.87x = 685,112,295.34
5. Step 5: Solve for x
   x = 685,112,295.34/42,369.87
6. Step 6: Final answer
   x = 16,169.80