Finding the Fourth Proportional to 279,667.60, 385,939.32 and 152,343.19

Step by Step Solution

1. Step 1: Write the proportion equation
   279,667.60 : 385,939.32 = 152,343.19 : x
2. Step 2: Convert to fraction form
   279,667.60/385,939.32 = 152,343.19/x
3. Step 3: Cross multiply
   279,667.60x = 385,939.32 × 152,343.19
4. Step 4: Simplify right side
   279,667.60x = 58,795,227,066.37
5. Step 5: Solve for x
   x = 58,795,227,066.37/279,667.60
6. Step 6: Final answer
   x = 210,232.53