Finding the Fourth Proportional to 83,072.76, 124,481.52 and 56,384.04

Step by Step Solution

1. Step 1: Write the proportion equation
   83,072.76 : 124,481.52 = 56,384.04 : x
2. Step 2: Convert to fraction form
   83,072.76/124,481.52 = 56,384.04/x
3. Step 3: Cross multiply
   83,072.76x = 124,481.52 × 56,384.04
4. Step 4: Simplify right side
   83,072.76x = 7,018,771,002.94
5. Step 5: Solve for x
   x = 7,018,771,002.94/83,072.76
6. Step 6: Final answer
   x = 84,489.44