Finding the Fourth Proportional to 93,570.82, 140,223.56 and 72,412.36

Step by Step Solution

1. Step 1: Write the proportion equation
   93,570.82 : 140,223.56 = 72,412.36 : x
2. Step 2: Convert to fraction form
   93,570.82/140,223.56 = 72,412.36/x
3. Step 3: Cross multiply
   93,570.82x = 140,223.56 × 72,412.36
4. Step 4: Simplify right side
   93,570.82x = 10,153,919,149.43
5. Step 5: Solve for x
   x = 10,153,919,149.43/93,570.82
6. Step 6: Final answer
   x = 108,515.88