Finding the Fourth Proportional to 141,866.87, 212,804.76 and 53,103.43

Step by Step Solution

1. Step 1: Write the proportion equation
   141,866.87 : 212,804.76 = 53,103.43 : x
2. Step 2: Convert to fraction form
   141,866.87/212,804.76 = 53,103.43/x
3. Step 3: Cross multiply
   141,866.87x = 212,804.76 × 53,103.43
4. Step 4: Simplify right side
   141,866.87x = 11,300,661,612.30
5. Step 5: Solve for x
   x = 11,300,661,612.30/141,866.87
6. Step 6: Final answer
   x = 79,656.81