Finding the Fourth Proportional to 85,954,410.56, 128,850,565.52 and 42,782,800.98

Step by Step Solution

1. Step 1: Write the proportion equation
   85,954,410.56 : 128,850,565.52 = 42,782,800.98 : x
2. Step 2: Convert to fraction form
   85,954,410.56/128,850,565.52 = 42,782,800.98/x
3. Step 3: Cross multiply
   85,954,410.56x = 128,850,565.52 × 42,782,800.98
4. Step 4: Simplify right side
   85,954,410.56x = 5,512,588,100,802,610
5. Step 5: Solve for x
   x = 5,512,588,100,802,610/85,954,410.56
6. Step 6: Final answer
   x = 64,133,859.62