Finding the Fourth Proportional to 72,364.42, 99,911.64 and 45,181.89

Step by Step Solution

1. Step 1: Write the proportion equation
   72,364.42 : 99,911.64 = 45,181.89 : x
2. Step 2: Convert to fraction form
   72,364.42/99,911.64 = 45,181.89/x
3. Step 3: Cross multiply
   72,364.42x = 99,911.64 × 45,181.89
4. Step 4: Simplify right side
   72,364.42x = 4,514,196,797.41
5. Step 5: Solve for x
   x = 4,514,196,797.41/72,364.42
6. Step 6: Final answer
   x = 62,381.44