Finding the Fourth Proportional to 118,597.52, 163,702.73 and 78,347

Step by Step Solution

1. Step 1: Write the proportion equation
   118,597.52 : 163,702.73 = 78,347 : x
2. Step 2: Convert to fraction form
   118,597.52/163,702.73 = 78,347/x
3. Step 3: Cross multiply
   118,597.52x = 163,702.73 × 78,347
4. Step 4: Simplify right side
   118,597.52x = 12,825,617,787.31
5. Step 5: Solve for x
   x = 12,825,617,787.31/118,597.52
6. Step 6: Final answer
   x = 108,144.06