Finding the Fourth Proportional to 147,633.42, 221,417.01 and 42,428.94

Step by Step Solution

1. Step 1: Write the proportion equation
   147,633.42 : 221,417.01 = 42,428.94 : x
2. Step 2: Convert to fraction form
   147,633.42/221,417.01 = 42,428.94/x
3. Step 3: Cross multiply
   147,633.42x = 221,417.01 × 42,428.94
4. Step 4: Simplify right side
   147,633.42x = 9,394,489,032.27
5. Step 5: Solve for x
   x = 9,394,489,032.27/147,633.42
6. Step 6: Final answer
   x = 63,633.89