Finding the Fourth Proportional to 143,877.72, 215,838.77 and 49,085.70

Step by Step Solution

1. Step 1: Write the proportion equation
   143,877.72 : 215,838.77 = 49,085.70 : x
2. Step 2: Convert to fraction form
   143,877.72/215,838.77 = 49,085.70/x
3. Step 3: Cross multiply
   143,877.72x = 215,838.77 × 49,085.70
4. Step 4: Simplify right side
   143,877.72x = 10,594,597,112.59
5. Step 5: Solve for x
   x = 10,594,597,112.59/143,877.72
6. Step 6: Final answer
   x = 73,636.12