Finding the Fourth Proportional to 176,404.96, 243,458.72 and 99,929.28

Step by Step Solution

1. Step 1: Write the proportion equation
   176,404.96 : 243,458.72 = 99,929.28 : x
2. Step 2: Convert to fraction form
   176,404.96/243,458.72 = 99,929.28/x
3. Step 3: Cross multiply
   176,404.96x = 243,458.72 × 99,929.28
4. Step 4: Simplify right side
   176,404.96x = 24,328,654,599.32
5. Step 5: Solve for x
   x = 24,328,654,599.32/176,404.96
6. Step 6: Final answer
   x = 137,913.67