Finding the Fourth Proportional to 102,131.70, 153,257.49 and 42,962.82

Step by Step Solution

1. Step 1: Write the proportion equation
   102,131.70 : 153,257.49 = 42,962.82 : x
2. Step 2: Convert to fraction form
   102,131.70/153,257.49 = 42,962.82/x
3. Step 3: Cross multiply
   102,131.70x = 153,257.49 × 42,962.82
4. Step 4: Simplify right side
   102,131.70x = 6,584,373,956.52
5. Step 5: Solve for x
   x = 6,584,373,956.52/102,131.70
6. Step 6: Final answer
   x = 64,469.44