Finding the Fourth Proportional to 144,071.71, 215,959.78 and 55,301.29

Step by Step Solution

1. Step 1: Write the proportion equation
   144,071.71 : 215,959.78 = 55,301.29 : x
2. Step 2: Convert to fraction form
   144,071.71/215,959.78 = 55,301.29/x
3. Step 3: Cross multiply
   144,071.71x = 215,959.78 × 55,301.29
4. Step 4: Simplify right side
   144,071.71x = 11,942,854,422.12
5. Step 5: Solve for x
   x = 11,942,854,422.12/144,071.71
6. Step 6: Final answer
   x = 82,895.21