Finding the Fourth Proportional to 78,050.94, 117,004.64 and 28,118.82

Step by Step Solution

1. Step 1: Write the proportion equation
   78,050.94 : 117,004.64 = 28,118.82 : x
2. Step 2: Convert to fraction form
   78,050.94/117,004.64 = 28,118.82/x
3. Step 3: Cross multiply
   78,050.94x = 117,004.64 × 28,118.82
4. Step 4: Simplify right side
   78,050.94x = 3,290,032,411.32
5. Step 5: Solve for x
   x = 3,290,032,411.32/78,050.94
6. Step 6: Final answer
   x = 42,152.37