Finding the Fourth Proportional to 140,503.38, 210,838.05 and 51,818.82

Step by Step Solution

1. Step 1: Write the proportion equation
   140,503.38 : 210,838.05 = 51,818.82 : x
2. Step 2: Convert to fraction form
   140,503.38/210,838.05 = 51,818.82/x
3. Step 3: Cross multiply
   140,503.38x = 210,838.05 × 51,818.82
4. Step 4: Simplify right side
   140,503.38x = 10,925,378,962.10
5. Step 5: Solve for x
   x = 10,925,378,962.10/140,503.38
6. Step 6: Final answer
   x = 77,758.83