Finding the Fourth Proportional to 79,837.72, 119,830.29 and 40,422.45

Step by Step Solution

1. Step 1: Write the proportion equation
   79,837.72 : 119,830.29 = 40,422.45 : x
2. Step 2: Convert to fraction form
   79,837.72/119,830.29 = 40,422.45/x
3. Step 3: Cross multiply
   79,837.72x = 119,830.29 × 40,422.45
4. Step 4: Simplify right side
   79,837.72x = 4,843,833,906.01
5. Step 5: Solve for x
   x = 4,843,833,906.01/79,837.72
6. Step 6: Final answer
   x = 60,670.99