Finding the Fourth Proportional to 52,160.22, 78,112.72 and 47,105.82

Step by Step Solution

1. Step 1: Write the proportion equation
   52,160.22 : 78,112.72 = 47,105.82 : x
2. Step 2: Convert to fraction form
   52,160.22/78,112.72 = 47,105.82/x
3. Step 3: Cross multiply
   52,160.22x = 78,112.72 × 47,105.82
4. Step 4: Simplify right side
   52,160.22x = 3,679,563,728.03
5. Step 5: Solve for x
   x = 3,679,563,728.03/52,160.22
6. Step 6: Final answer
   x = 70,543.49