Finding the Fourth Proportional to 72,375.72, 99,880.46 and 40,543.93

Step by Step Solution

1. Step 1: Write the proportion equation
   72,375.72 : 99,880.46 = 40,543.93 : x
2. Step 2: Convert to fraction form
   72,375.72/99,880.46 = 40,543.93/x
3. Step 3: Cross multiply
   72,375.72x = 99,880.46 × 40,543.93
4. Step 4: Simplify right side
   72,375.72x = 4,049,546,378.61
5. Step 5: Solve for x
   x = 4,049,546,378.61/72,375.72
6. Step 6: Final answer
   x = 55,951.72