Finding the Fourth Proportional to 279,810.56, 386,127.33 and 152,483.42

Step by Step Solution

1. Step 1: Write the proportion equation
   279,810.56 : 386,127.33 = 152,483.42 : x
2. Step 2: Convert to fraction form
   279,810.56/386,127.33 = 152,483.42/x
3. Step 3: Cross multiply
   279,810.56x = 386,127.33 × 152,483.42
4. Step 4: Simplify right side
   279,810.56x = 58,878,015,833.87
5. Step 5: Solve for x
   x = 58,878,015,833.87/279,810.56
6. Step 6: Final answer
   x = 210,420.99