Finding the Fourth Proportional to 93,405, 140,108.73 and 31,075.50

Step by Step Solution

1. Step 1: Write the proportion equation
   93,405 : 140,108.73 = 31,075.50 : x
2. Step 2: Convert to fraction form
   93,405/140,108.73 = 31,075.50/x
3. Step 3: Cross multiply
   93,405x = 140,108.73 × 31,075.50
4. Step 4: Simplify right side
   93,405x = 4,353,948,839.12
5. Step 5: Solve for x
   x = 4,353,948,839.12/93,405
6. Step 6: Final answer
   x = 46,613.66