Finding the Fourth Proportional to 276,343.34, 414,523.89 and 76,665.74

Step by Step Solution

1. Step 1: Write the proportion equation
   276,343.34 : 414,523.89 = 76,665.74 : x
2. Step 2: Convert to fraction form
   276,343.34/414,523.89 = 76,665.74/x
3. Step 3: Cross multiply
   276,343.34x = 414,523.89 × 76,665.74
4. Step 4: Simplify right side
   276,343.34x = 31,779,780,774.53
5. Step 5: Solve for x
   x = 31,779,780,774.53/276,343.34
6. Step 6: Final answer
   x = 115,001.07