Finding the Fourth Proportional to 64,975.83, 89,667.39 and 38,118.79

Step by Step Solution

1. Step 1: Write the proportion equation
   64,975.83 : 89,667.39 = 38,118.79 : x
2. Step 2: Convert to fraction form
   64,975.83/89,667.39 = 38,118.79/x
3. Step 3: Cross multiply
   64,975.83x = 89,667.39 × 38,118.79
4. Step 4: Simplify right side
   64,975.83x = 3,418,012,521.34
5. Step 5: Solve for x
   x = 3,418,012,521.34/64,975.83
6. Step 6: Final answer
   x = 52,604.37