Finding the Fourth Proportional to 147,926.72, 221,822.72 and 42,720.64

Step by Step Solution

1. Step 1: Write the proportion equation
   147,926.72 : 221,822.72 = 42,720.64 : x
2. Step 2: Convert to fraction form
   147,926.72/221,822.72 = 42,720.64/x
3. Step 3: Cross multiply
   147,926.72x = 221,822.72 × 42,720.64
4. Step 4: Simplify right side
   147,926.72x = 9,476,408,564.94
5. Step 5: Solve for x
   x = 9,476,408,564.94/147,926.72
6. Step 6: Final answer
   x = 64,061.51