Finding the Fourth Proportional to 147,799.42, 221,648.73 and 42,590.14

Step by Step Solution

1. Step 1: Write the proportion equation
   147,799.42 : 221,648.73 = 42,590.14 : x
2. Step 2: Convert to fraction form
   147,799.42/221,648.73 = 42,590.14/x
3. Step 3: Cross multiply
   147,799.42x = 221,648.73 × 42,590.14
4. Step 4: Simplify right side
   147,799.42x = 9,440,050,441.52
5. Step 5: Solve for x
   x = 9,440,050,441.52/147,799.42
6. Step 6: Final answer
   x = 63,870.69