Finding the Fourth Proportional to 50,642.33, 69,841.01 and 42,172.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,642.33 : 69,841.01 = 42,172.50 : x
2. Step 2: Convert to fraction form
   50,642.33/69,841.01 = 42,172.50/x
3. Step 3: Cross multiply
   50,642.33x = 69,841.01 × 42,172.50
4. Step 4: Simplify right side
   50,642.33x = 2,945,369,783.36
5. Step 5: Solve for x
   x = 2,945,369,783.36/50,642.33
6. Step 6: Final answer
   x = 58,160.23