Finding the Fourth Proportional to 72,296.21, 99,633.54 and 52,118.71

Step by Step Solution

1. Step 1: Write the proportion equation
   72,296.21 : 99,633.54 = 52,118.71 : x
2. Step 2: Convert to fraction form
   72,296.21/99,633.54 = 52,118.71/x
3. Step 3: Cross multiply
   72,296.21x = 99,633.54 × 52,118.71
4. Step 4: Simplify right side
   72,296.21x = 5,192,771,328.45
5. Step 5: Solve for x
   x = 5,192,771,328.45/72,296.21
6. Step 6: Final answer
   x = 71,826.33