Finding the Fourth Proportional to 70,123.48, 105,223.50 and 40,598.98

Step by Step Solution

1. Step 1: Write the proportion equation
   70,123.48 : 105,223.50 = 40,598.98 : x
2. Step 2: Convert to fraction form
   70,123.48/105,223.50 = 40,598.98/x
3. Step 3: Cross multiply
   70,123.48x = 105,223.50 × 40,598.98
4. Step 4: Simplify right side
   70,123.48x = 4,271,966,772.03
5. Step 5: Solve for x
   x = 4,271,966,772.03/70,123.48
6. Step 6: Final answer
   x = 60,920.63