Finding the Fourth Proportional to 278,667.45, 384,558.92 and 151,343.05

Step by Step Solution

1. Step 1: Write the proportion equation
   278,667.45 : 384,558.92 = 151,343.05 : x
2. Step 2: Convert to fraction form
   278,667.45/384,558.92 = 151,343.05/x
3. Step 3: Cross multiply
   278,667.45x = 384,558.92 × 151,343.05
4. Step 4: Simplify right side
   278,667.45x = 58,200,319,075.59
5. Step 5: Solve for x
   x = 58,200,319,075.59/278,667.45
6. Step 6: Final answer
   x = 208,852.23