Finding the Fourth Proportional to 143,025.47, 214,531.23 and 53,085.69

Step by Step Solution

1. Step 1: Write the proportion equation
   143,025.47 : 214,531.23 = 53,085.69 : x
2. Step 2: Convert to fraction form
   143,025.47/214,531.23 = 53,085.69/x
3. Step 3: Cross multiply
   143,025.47x = 214,531.23 × 53,085.69
4. Step 4: Simplify right side
   143,025.47x = 11,388,538,371.10
5. Step 5: Solve for x
   x = 11,388,538,371.10/143,025.47
6. Step 6: Final answer
   x = 79,625.95