Finding the Fourth Proportional to 116,839.31, 161,238.32 and 63,124.30

Step by Step Solution

1. Step 1: Write the proportion equation
   116,839.31 : 161,238.32 = 63,124.30 : x
2. Step 2: Convert to fraction form
   116,839.31/161,238.32 = 63,124.30/x
3. Step 3: Cross multiply
   116,839.31x = 161,238.32 × 63,124.30
4. Step 4: Simplify right side
   116,839.31x = 10,178,056,083.18
5. Step 5: Solve for x
   x = 10,178,056,083.18/116,839.31
6. Step 6: Final answer
   x = 87,111.57