Finding the Fourth Proportional to 131,238.69, 196,889.38 and 42,492.29

Step by Step Solution

1. Step 1: Write the proportion equation
   131,238.69 : 196,889.38 = 42,492.29 : x
2. Step 2: Convert to fraction form
   131,238.69/196,889.38 = 42,492.29/x
3. Step 3: Cross multiply
   131,238.69x = 196,889.38 × 42,492.29
4. Step 4: Simplify right side
   131,238.69x = 8,366,279,648.43
5. Step 5: Solve for x
   x = 8,366,279,648.43/131,238.69
6. Step 6: Final answer
   x = 63,748.58