Finding the Fourth Proportional to 127,424.32, 191,058.72 and 52,521.28

Step by Step Solution

1. Step 1: Write the proportion equation
   127,424.32 : 191,058.72 = 52,521.28 : x
2. Step 2: Convert to fraction form
   127,424.32/191,058.72 = 52,521.28/x
3. Step 3: Cross multiply
   127,424.32x = 191,058.72 × 52,521.28
4. Step 4: Simplify right side
   127,424.32x = 10,034,648,529.56
5. Step 5: Solve for x
   x = 10,034,648,529.56/127,424.32
6. Step 6: Final answer
   x = 78,749.87