Finding the Fourth Proportional to 763,164.72, 1,053,166.32 and 423,632.16

Step by Step Solution

1. Step 1: Write the proportion equation
   763,164.72 : 1,053,166.32 = 423,632.16 : x
2. Step 2: Convert to fraction form
   763,164.72/1,053,166.32 = 423,632.16/x
3. Step 3: Cross multiply
   763,164.72x = 1,053,166.32 × 423,632.16
4. Step 4: Simplify right side
   763,164.72x = 446,155,122,980.85
5. Step 5: Solve for x
   x = 446,155,122,980.85/763,164.72
6. Step 6: Final answer
   x = 584,611.83