Finding the Fourth Proportional to 72,967.17, 100,684.87 and 42,339.45

Step by Step Solution

1. Step 1: Write the proportion equation
   72,967.17 : 100,684.87 = 42,339.45 : x
2. Step 2: Convert to fraction form
   72,967.17/100,684.87 = 42,339.45/x
3. Step 3: Cross multiply
   72,967.17x = 100,684.87 × 42,339.45
4. Step 4: Simplify right side
   72,967.17x = 4,262,942,019.12
5. Step 5: Solve for x
   x = 4,262,942,019.12/72,967.17
6. Step 6: Final answer
   x = 58,422.74