Finding the Fourth Proportional to 147,608.30, 221,444.85 and 72,764.30

Step by Step Solution

1. Step 1: Write the proportion equation
   147,608.30 : 221,444.85 = 72,764.30 : x
2. Step 2: Convert to fraction form
   147,608.30/221,444.85 = 72,764.30/x
3. Step 3: Cross multiply
   147,608.30x = 221,444.85 × 72,764.30
4. Step 4: Simplify right side
   147,608.30x = 16,113,279,498.86
5. Step 5: Solve for x
   x = 16,113,279,498.86/147,608.30
6. Step 6: Final answer
   x = 109,162.42