Finding the Fourth Proportional to 147,419.08, 221,127.40 and 42,238.15

Step by Step Solution

1. Step 1: Write the proportion equation
   147,419.08 : 221,127.40 = 42,238.15 : x
2. Step 2: Convert to fraction form
   147,419.08/221,127.40 = 42,238.15/x
3. Step 3: Cross multiply
   147,419.08x = 221,127.40 × 42,238.15
4. Step 4: Simplify right side
   147,419.08x = 9,340,012,290.31
5. Step 5: Solve for x
   x = 9,340,012,290.31/147,419.08
6. Step 6: Final answer
   x = 63,356.88