Finding the Fourth Proportional to 73,969.26, 102,072.06 and 42,131.94

Step by Step Solution

1. Step 1: Write the proportion equation
   73,969.26 : 102,072.06 = 42,131.94 : x
2. Step 2: Convert to fraction form
   73,969.26/102,072.06 = 42,131.94/x
3. Step 3: Cross multiply
   73,969.26x = 102,072.06 × 42,131.94
4. Step 4: Simplify right side
   73,969.26x = 4,300,493,907.60
5. Step 5: Solve for x
   x = 4,300,493,907.60/73,969.26
6. Step 6: Final answer
   x = 58,138.93