Finding the Fourth Proportional to 78,653.30, 117,385.72 and 73,320.42

Step by Step Solution

1. Step 1: Write the proportion equation
   78,653.30 : 117,385.72 = 73,320.42 : x
2. Step 2: Convert to fraction form
   78,653.30/117,385.72 = 73,320.42/x
3. Step 3: Cross multiply
   78,653.30x = 117,385.72 × 73,320.42
4. Step 4: Simplify right side
   78,653.30x = 8,606,770,292.40
5. Step 5: Solve for x
   x = 8,606,770,292.40/78,653.30
6. Step 6: Final answer
   x = 109,426.69