Finding the Fourth Proportional to 112,979.46, 155,916.54 and 67,664.82

Step by Step Solution

1. Step 1: Write the proportion equation
   112,979.46 : 155,916.54 = 67,664.82 : x
2. Step 2: Convert to fraction form
   112,979.46/155,916.54 = 67,664.82/x
3. Step 3: Cross multiply
   112,979.46x = 155,916.54 × 67,664.82
4. Step 4: Simplify right side
   112,979.46x = 10,550,064,614.12
5. Step 5: Solve for x
   x = 10,550,064,614.12/112,979.46
6. Step 6: Final answer
   x = 93,380.38