Finding the Fourth Proportional to 52,160.34, 78,112.90 and 47,105.94

Step by Step Solution

1. Step 1: Write the proportion equation
   52,160.34 : 78,112.90 = 47,105.94 : x
2. Step 2: Convert to fraction form
   52,160.34/78,112.90 = 47,105.94/x
3. Step 3: Cross multiply
   52,160.34x = 78,112.90 × 47,105.94
4. Step 4: Simplify right side
   52,160.34x = 3,679,581,580.63
5. Step 5: Solve for x
   x = 3,679,581,580.63/52,160.34
6. Step 6: Final answer
   x = 70,543.67