Finding the Fourth Proportional to 79,820.64, 119,696.33 and 42,372.52

Step by Step Solution

1. Step 1: Write the proportion equation
   79,820.64 : 119,696.33 = 42,372.52 : x
2. Step 2: Convert to fraction form
   79,820.64/119,696.33 = 42,372.52/x
3. Step 3: Cross multiply
   79,820.64x = 119,696.33 × 42,372.52
4. Step 4: Simplify right side
   79,820.64x = 5,071,834,943.54
5. Step 5: Solve for x
   x = 5,071,834,943.54/79,820.64
6. Step 6: Final answer
   x = 63,540.39