Finding the Fourth Proportional to 67,406.72, 101,109.58 and 52,628

Step by Step Solution

1. Step 1: Write the proportion equation
   67,406.72 : 101,109.58 = 52,628 : x
2. Step 2: Convert to fraction form
   67,406.72/101,109.58 = 52,628/x
3. Step 3: Cross multiply
   67,406.72x = 101,109.58 × 52,628
4. Step 4: Simplify right side
   67,406.72x = 5,321,194,976.24
5. Step 5: Solve for x
   x = 5,321,194,976.24/67,406.72
6. Step 6: Final answer
   x = 78,941.61