Finding the Fourth Proportional to 92,170,443.43, 138,159,100.13 and 42,945,708.10

Step by Step Solution

1. Step 1: Write the proportion equation
   92,170,443.43 : 138,159,100.13 = 42,945,708.10 : x
2. Step 2: Convert to fraction form
   92,170,443.43/138,159,100.13 = 42,945,708.10/x
3. Step 3: Cross multiply
   92,170,443.43x = 138,159,100.13 × 42,945,708.10
4. Step 4: Simplify right side
   92,170,443.43x = 5,933,340,384,981,525
5. Step 5: Solve for x
   x = 5,933,340,384,981,525/92,170,443.43
6. Step 6: Final answer
   x = 64,373,568.84