Finding the Fourth Proportional to 92,270, 138,414.72 and 42,341.60

Step by Step Solution

1. Step 1: Write the proportion equation
   92,270 : 138,414.72 = 42,341.60 : x
2. Step 2: Convert to fraction form
   92,270/138,414.72 = 42,341.60/x
3. Step 3: Cross multiply
   92,270x = 138,414.72 × 42,341.60
4. Step 4: Simplify right side
   92,270x = 5,860,700,708.35
5. Step 5: Solve for x
   x = 5,860,700,708.35/92,270
6. Step 6: Final answer
   x = 63,516.86