Finding the Fourth Proportional to 215,820.58, 323,764.16 and 73,632.55

Step by Step Solution

1. Step 1: Write the proportion equation
   215,820.58 : 323,764.16 = 73,632.55 : x
2. Step 2: Convert to fraction form
   215,820.58/323,764.16 = 73,632.55/x
3. Step 3: Cross multiply
   215,820.58x = 323,764.16 × 73,632.55
4. Step 4: Simplify right side
   215,820.58x = 23,839,580,699.41
5. Step 5: Solve for x
   x = 23,839,580,699.41/215,820.58
6. Step 6: Final answer
   x = 110,460.18