Finding the Fourth Proportional to 279,826.02, 386,150.13 and 152,499.06

Step by Step Solution

1. Step 1: Write the proportion equation
   279,826.02 : 386,150.13 = 152,499.06 : x
2. Step 2: Convert to fraction form
   279,826.02/386,150.13 = 152,499.06/x
3. Step 3: Cross multiply
   279,826.02x = 386,150.13 × 152,499.06
4. Step 4: Simplify right side
   279,826.02x = 58,887,531,843.88
5. Step 5: Solve for x
   x = 58,887,531,843.88/279,826.02
6. Step 6: Final answer
   x = 210,443.37