Finding the Fourth Proportional to 127,777.95, 191,667.63 and 52,857.50

Step by Step Solution

1. Step 1: Write the proportion equation
   127,777.95 : 191,667.63 = 52,857.50 : x
2. Step 2: Convert to fraction form
   127,777.95/191,667.63 = 52,857.50/x
3. Step 3: Cross multiply
   127,777.95x = 191,667.63 × 52,857.50
4. Step 4: Simplify right side
   127,777.95x = 10,131,072,231.89
5. Step 5: Solve for x
   x = 10,131,072,231.89/127,777.95
6. Step 6: Final answer
   x = 79,286.55