Finding the Fourth Proportional to 118,411.06, 163,399.42 and 67,429

Step by Step Solution

1. Step 1: Write the proportion equation
   118,411.06 : 163,399.42 = 67,429 : x
2. Step 2: Convert to fraction form
   118,411.06/163,399.42 = 67,429/x
3. Step 3: Cross multiply
   118,411.06x = 163,399.42 × 67,429
4. Step 4: Simplify right side
   118,411.06x = 11,017,859,491.18
5. Step 5: Solve for x
   x = 11,017,859,491.18/118,411.06
6. Step 6: Final answer
   x = 93,047.55