Finding the Fourth Proportional to 132,859.32, 183,341.58 and 72,429

Step by Step Solution

1. Step 1: Write the proportion equation
   132,859.32 : 183,341.58 = 72,429 : x
2. Step 2: Convert to fraction form
   132,859.32/183,341.58 = 72,429/x
3. Step 3: Cross multiply
   132,859.32x = 183,341.58 × 72,429
4. Step 4: Simplify right side
   132,859.32x = 13,279,247,297.82
5. Step 5: Solve for x
   x = 13,279,247,297.82/132,859.32
6. Step 6: Final answer
   x = 99,949.69