Finding the Fourth Proportional to 147,649.05, 221,465.84 and 42,463.89

Step by Step Solution

1. Step 1: Write the proportion equation
   147,649.05 : 221,465.84 = 42,463.89 : x
2. Step 2: Convert to fraction form
   147,649.05/221,465.84 = 42,463.89/x
3. Step 3: Cross multiply
   147,649.05x = 221,465.84 × 42,463.89
4. Step 4: Simplify right side
   147,649.05x = 9,404,300,856.20
5. Step 5: Solve for x
   x = 9,404,300,856.20/147,649.05
6. Step 6: Final answer
   x = 63,693.61