Finding the Fourth Proportional to 103,803.42, 142,314.38 and 101,911.67

Step by Step Solution

1. Step 1: Write the proportion equation
   103,803.42 : 142,314.38 = 101,911.67 : x
2. Step 2: Convert to fraction form
   103,803.42/142,314.38 = 101,911.67/x
3. Step 3: Cross multiply
   103,803.42x = 142,314.38 × 101,911.67
4. Step 4: Simplify right side
   103,803.42x = 14,503,496,398.79
5. Step 5: Solve for x
   x = 14,503,496,398.79/103,803.42
6. Step 6: Final answer
   x = 139,720.79