Finding the Fourth Proportional to 116,044.40, 160,128.60 and 68,312.72

Step by Step Solution

1. Step 1: Write the proportion equation
   116,044.40 : 160,128.60 = 68,312.72 : x
2. Step 2: Convert to fraction form
   116,044.40/160,128.60 = 68,312.72/x
3. Step 3: Cross multiply
   116,044.40x = 160,128.60 × 68,312.72
4. Step 4: Simplify right side
   116,044.40x = 10,938,820,215.79
5. Step 5: Solve for x
   x = 10,938,820,215.79/116,044.40
6. Step 6: Final answer
   x = 94,264.09