Finding the Fourth Proportional to 55,242.78, 82,875.51 and 17,807.82

Step by Step Solution

1. Step 1: Write the proportion equation
   55,242.78 : 82,875.51 = 17,807.82 : x
2. Step 2: Convert to fraction form
   55,242.78/82,875.51 = 17,807.82/x
3. Step 3: Cross multiply
   55,242.78x = 82,875.51 × 17,807.82
4. Step 4: Simplify right side
   55,242.78x = 1,475,832,164.49
5. Step 5: Solve for x
   x = 1,475,832,164.49/55,242.78
6. Step 6: Final answer
   x = 26,715.39