Finding the Fourth Proportional to 131,162.72, 196,754.88 and 42,430.46

Step by Step Solution

1. Step 1: Write the proportion equation
   131,162.72 : 196,754.88 = 42,430.46 : x
2. Step 2: Convert to fraction form
   131,162.72/196,754.88 = 42,430.46/x
3. Step 3: Cross multiply
   131,162.72x = 196,754.88 × 42,430.46
4. Step 4: Simplify right side
   131,162.72x = 8,348,400,065.64
5. Step 5: Solve for x
   x = 8,348,400,065.64/131,162.72
6. Step 6: Final answer
   x = 63,649.18