Finding the Fourth Proportional to 111,429.60, 167,292.72 and 64,716

Step by Step Solution

1. Step 1: Write the proportion equation
   111,429.60 : 167,292.72 = 64,716 : x
2. Step 2: Convert to fraction form
   111,429.60/167,292.72 = 64,716/x
3. Step 3: Cross multiply
   111,429.60x = 167,292.72 × 64,716
4. Step 4: Simplify right side
   111,429.60x = 10,826,515,667.52
5. Step 5: Solve for x
   x = 10,826,515,667.52/111,429.60
6. Step 6: Final answer
   x = 97,160.14