Finding the Fourth Proportional to 72,412.64, 99,824.73 and 50,836.69

Step by Step Solution

1. Step 1: Write the proportion equation
   72,412.64 : 99,824.73 = 50,836.69 : x
2. Step 2: Convert to fraction form
   72,412.64/99,824.73 = 50,836.69/x
3. Step 3: Cross multiply
   72,412.64x = 99,824.73 × 50,836.69
4. Step 4: Simplify right side
   72,412.64x = 5,074,758,853.34
5. Step 5: Solve for x
   x = 5,074,758,853.34/72,412.64
6. Step 6: Final answer
   x = 70,081.12