Finding the Fourth Proportional to 42,796.54, 64,210.01 and 19,101.94

Step by Step Solution

1. Step 1: Write the proportion equation
   42,796.54 : 64,210.01 = 19,101.94 : x
2. Step 2: Convert to fraction form
   42,796.54/64,210.01 = 19,101.94/x
3. Step 3: Cross multiply
   42,796.54x = 64,210.01 × 19,101.94
4. Step 4: Simplify right side
   42,796.54x = 1,226,535,758.42
5. Step 5: Solve for x
   x = 1,226,535,758.42/42,796.54
6. Step 6: Final answer
   x = 28,659.69