Finding the Fourth Proportional to 478,870.39, 660,846.03 and 264,018.15

Step by Step Solution

1. Step 1: Write the proportion equation
   478,870.39 : 660,846.03 = 264,018.15 : x
2. Step 2: Convert to fraction form
   478,870.39/660,846.03 = 264,018.15/x
3. Step 3: Cross multiply
   478,870.39x = 660,846.03 × 264,018.15
4. Step 4: Simplify right side
   478,870.39x = 174,475,346,275.45
5. Step 5: Solve for x
   x = 174,475,346,275.45/478,870.39
6. Step 6: Final answer
   x = 364,347.74