Finding the Fourth Proportional to 309,404.56, 464,174.88 and 99,063.76

Step by Step Solution

1. Step 1: Write the proportion equation
   309,404.56 : 464,174.88 = 99,063.76 : x
2. Step 2: Convert to fraction form
   309,404.56/464,174.88 = 99,063.76/x
3. Step 3: Cross multiply
   309,404.56x = 464,174.88 × 99,063.76
4. Step 4: Simplify right side
   309,404.56x = 45,982,908,910.35
5. Step 5: Solve for x
   x = 45,982,908,910.35/309,404.56
6. Step 6: Final answer
   x = 148,617.42