Finding the Fourth Proportional to 279,754.90, 386,061.82 and 152,430.49

Step by Step Solution

1. Step 1: Write the proportion equation
   279,754.90 : 386,061.82 = 152,430.49 : x
2. Step 2: Convert to fraction form
   279,754.90/386,061.82 = 152,430.49/x
3. Step 3: Cross multiply
   279,754.90x = 386,061.82 × 152,430.49
4. Step 4: Simplify right side
   279,754.90x = 58,847,592,392.89
5. Step 5: Solve for x
   x = 58,847,592,392.89/279,754.90
6. Step 6: Final answer
   x = 210,354.11