Finding the Fourth Proportional to 72,406.17, 99,916.39 and 42,196.41

Step by Step Solution

1. Step 1: Write the proportion equation
   72,406.17 : 99,916.39 = 42,196.41 : x
2. Step 2: Convert to fraction form
   72,406.17/99,916.39 = 42,196.41/x
3. Step 3: Cross multiply
   72,406.17x = 99,916.39 × 42,196.41
4. Step 4: Simplify right side
   72,406.17x = 4,216,112,958.16
5. Step 5: Solve for x
   x = 4,216,112,958.16/72,406.17
6. Step 6: Final answer
   x = 58,228.64