Finding the Fourth Proportional to 279,837.56, 386,164.59 and 152,510.42

Step by Step Solution

1. Step 1: Write the proportion equation
   279,837.56 : 386,164.59 = 152,510.42 : x
2. Step 2: Convert to fraction form
   279,837.56/386,164.59 = 152,510.42/x
3. Step 3: Cross multiply
   279,837.56x = 386,164.59 × 152,510.42
4. Step 4: Simplify right side
   279,837.56x = 58,894,123,810.03
5. Step 5: Solve for x
   x = 58,894,123,810.03/279,837.56
6. Step 6: Final answer
   x = 210,458.25