Finding the Fourth Proportional to 76,196.03, 105,156.44 and 42,207.68

Step by Step Solution

1. Step 1: Write the proportion equation
   76,196.03 : 105,156.44 = 42,207.68 : x
2. Step 2: Convert to fraction form
   76,196.03/105,156.44 = 42,207.68/x
3. Step 3: Cross multiply
   76,196.03x = 105,156.44 × 42,207.68
4. Step 4: Simplify right side
   76,196.03x = 4,438,409,369.46
5. Step 5: Solve for x
   x = 4,438,409,369.46/76,196.03
6. Step 6: Final answer
   x = 58,249.88