Finding the Fourth Proportional to 139,770.34, 209,480.48 and 110,070.88

Step by Step Solution

1. Step 1: Write the proportion equation
   139,770.34 : 209,480.48 = 110,070.88 : x
2. Step 2: Convert to fraction form
   139,770.34/209,480.48 = 110,070.88/x
3. Step 3: Cross multiply
   139,770.34x = 209,480.48 × 110,070.88
4. Step 4: Simplify right side
   139,770.34x = 23,057,700,776.42
5. Step 5: Solve for x
   x = 23,057,700,776.42/139,770.34
6. Step 6: Final answer
   x = 164,968.48