Finding the Fourth Proportional to 142,267.16, 213,534.72 and 72,196.76

Step by Step Solution

1. Step 1: Write the proportion equation
   142,267.16 : 213,534.72 = 72,196.76 : x
2. Step 2: Convert to fraction form
   142,267.16/213,534.72 = 72,196.76/x
3. Step 3: Cross multiply
   142,267.16x = 213,534.72 × 72,196.76
4. Step 4: Simplify right side
   142,267.16x = 15,416,514,931.51
5. Step 5: Solve for x
   x = 15,416,514,931.51/142,267.16
6. Step 6: Final answer
   x = 108,363.13