Finding the Fourth Proportional to 428,536.04, 642,796.91 and 104,327.56

Step by Step Solution

1. Step 1: Write the proportion equation
   428,536.04 : 642,796.91 = 104,327.56 : x
2. Step 2: Convert to fraction form
   428,536.04/642,796.91 = 104,327.56/x
3. Step 3: Cross multiply
   428,536.04x = 642,796.91 × 104,327.56
4. Step 4: Simplify right side
   428,536.04x = 67,061,429,460.22
5. Step 5: Solve for x
   x = 67,061,429,460.22/428,536.04
6. Step 6: Final answer
   x = 156,489.59