Finding the Fourth Proportional to 480,061.59, 662,505.12 and 276,112.56

Step by Step Solution

1. Step 1: Write the proportion equation
   480,061.59 : 662,505.12 = 276,112.56 : x
2. Step 2: Convert to fraction form
   480,061.59/662,505.12 = 276,112.56/x
3. Step 3: Cross multiply
   480,061.59x = 662,505.12 × 276,112.56
4. Step 4: Simplify right side
   480,061.59x = 182,925,984,696.31
5. Step 5: Solve for x
   x = 182,925,984,696.31/480,061.59
6. Step 6: Final answer
   x = 381,046.91