Finding the Fourth Proportional to 279,602.40, 385,855.71 and 152,277.89

Step by Step Solution

1. Step 1: Write the proportion equation
   279,602.40 : 385,855.71 = 152,277.89 : x
2. Step 2: Convert to fraction form
   279,602.40/385,855.71 = 152,277.89/x
3. Step 3: Cross multiply
   279,602.40x = 385,855.71 × 152,277.89
4. Step 4: Simplify right side
   279,602.40x = 58,757,294,327.89
5. Step 5: Solve for x
   x = 58,757,294,327.89/279,602.40
6. Step 6: Final answer
   x = 210,145.89