Finding the Fourth Proportional to 82,429.32, 123,818.82 and 77,630.28

Step by Step Solution

1. Step 1: Write the proportion equation
   82,429.32 : 123,818.82 = 77,630.28 : x
2. Step 2: Convert to fraction form
   82,429.32/123,818.82 = 77,630.28/x
3. Step 3: Cross multiply
   82,429.32x = 123,818.82 × 77,630.28
4. Step 4: Simplify right side
   82,429.32x = 9,612,089,665.87
5. Step 5: Solve for x
   x = 9,612,089,665.87/82,429.32
6. Step 6: Final answer
   x = 116,610.08