Finding the Fourth Proportional to 69,845.78, 96,343.65 and 42,609.42

Step by Step Solution

1. Step 1: Write the proportion equation
   69,845.78 : 96,343.65 = 42,609.42 : x
2. Step 2: Convert to fraction form
   69,845.78/96,343.65 = 42,609.42/x
3. Step 3: Cross multiply
   69,845.78x = 96,343.65 × 42,609.42
4. Step 4: Simplify right side
   69,845.78x = 4,105,147,047.18
5. Step 5: Solve for x
   x = 4,105,147,047.18/69,845.78
6. Step 6: Final answer
   x = 58,774.45