Finding the Fourth Proportional to 126,736.79, 190,097.89 and 42,493.55

Step by Step Solution

1. Step 1: Write the proportion equation
   126,736.79 : 190,097.89 = 42,493.55 : x
2. Step 2: Convert to fraction form
   126,736.79/190,097.89 = 42,493.55/x
3. Step 3: Cross multiply
   126,736.79x = 190,097.89 × 42,493.55
4. Step 4: Simplify right side
   126,736.79x = 8,077,933,136.89
5. Step 5: Solve for x
   x = 8,077,933,136.89/126,736.79
6. Step 6: Final answer
   x = 63,737.87