Finding the Fourth Proportional to 116,985.30, 161,439.71 and 63,270.31

Step by Step Solution

1. Step 1: Write the proportion equation
   116,985.30 : 161,439.71 = 63,270.31 : x
2. Step 2: Convert to fraction form
   116,985.30/161,439.71 = 63,270.31/x
3. Step 3: Cross multiply
   116,985.30x = 161,439.71 × 63,270.31
4. Step 4: Simplify right side
   116,985.30x = 10,214,340,541.63
5. Step 5: Solve for x
   x = 10,214,340,541.63/116,985.30
6. Step 6: Final answer
   x = 87,313.03