Finding the Fourth Proportional to 111,147.30, 166,548.15 and 93,521.70

Step by Step Solution

1. Step 1: Write the proportion equation
   111,147.30 : 166,548.15 = 93,521.70 : x
2. Step 2: Convert to fraction form
   111,147.30/166,548.15 = 93,521.70/x
3. Step 3: Cross multiply
   111,147.30x = 166,548.15 × 93,521.70
4. Step 4: Simplify right side
   111,147.30x = 15,575,866,119.86
5. Step 5: Solve for x
   x = 15,575,866,119.86/111,147.30
6. Step 6: Final answer
   x = 140,137.15