Finding the Fourth Proportional to 123,731.56, 185,514.08 and 57,134.98

Step by Step Solution

1. Step 1: Write the proportion equation
   123,731.56 : 185,514.08 = 57,134.98 : x
2. Step 2: Convert to fraction form
   123,731.56/185,514.08 = 57,134.98/x
3. Step 3: Cross multiply
   123,731.56x = 185,514.08 × 57,134.98
4. Step 4: Simplify right side
   123,731.56x = 10,599,342,501.06
5. Step 5: Solve for x
   x = 10,599,342,501.06/123,731.56
6. Step 6: Final answer
   x = 85,664.02