Finding the Fourth Proportional to 146,105.07, 201,623.04 and 81,575.30

Step by Step Solution

1. Step 1: Write the proportion equation
   146,105.07 : 201,623.04 = 81,575.30 : x
2. Step 2: Convert to fraction form
   146,105.07/201,623.04 = 81,575.30/x
3. Step 3: Cross multiply
   146,105.07x = 201,623.04 × 81,575.30
4. Step 4: Simplify right side
   146,105.07x = 16,447,459,974.91
5. Step 5: Solve for x
   x = 16,447,459,974.91/146,105.07
6. Step 6: Final answer
   x = 112,572.82