Finding the Fourth Proportional to 72,233.51, 99,680.22 and 40,402.67

Step by Step Solution

1. Step 1: Write the proportion equation
   72,233.51 : 99,680.22 = 40,402.67 : x
2. Step 2: Convert to fraction form
   72,233.51/99,680.22 = 40,402.67/x
3. Step 3: Cross multiply
   72,233.51x = 99,680.22 × 40,402.67
4. Step 4: Simplify right side
   72,233.51x = 4,027,346,535.79
5. Step 5: Solve for x
   x = 4,027,346,535.79/72,233.51
6. Step 6: Final answer
   x = 55,754.55