Finding the Fourth Proportional to 143,818.34, 198,483.35 and 107,456.69

Step by Step Solution

1. Step 1: Write the proportion equation
   143,818.34 : 198,483.35 = 107,456.69 : x
2. Step 2: Convert to fraction form
   143,818.34/198,483.35 = 107,456.69/x
3. Step 3: Cross multiply
   143,818.34x = 198,483.35 × 107,456.69
4. Step 4: Simplify right side
   143,818.34x = 21,328,363,811.11
5. Step 5: Solve for x
   x = 21,328,363,811.11/143,818.34
6. Step 6: Final answer
   x = 148,300.72