Finding the Fourth Proportional to 116,141.60, 160,278.54 and 68,386.16

Step by Step Solution

1. Step 1: Write the proportion equation
   116,141.60 : 160,278.54 = 68,386.16 : x
2. Step 2: Convert to fraction form
   116,141.60/160,278.54 = 68,386.16/x
3. Step 3: Cross multiply
   116,141.60x = 160,278.54 × 68,386.16
4. Step 4: Simplify right side
   116,141.60x = 10,960,833,881.01
5. Step 5: Solve for x
   x = 10,960,833,881.01/116,141.60
6. Step 6: Final answer
   x = 94,374.74