Finding the Fourth Proportional to 123,598.02, 170,566.58 and 72,612.88

Step by Step Solution

1. Step 1: Write the proportion equation
   123,598.02 : 170,566.58 = 72,612.88 : x
2. Step 2: Convert to fraction form
   123,598.02/170,566.58 = 72,612.88/x
3. Step 3: Cross multiply
   123,598.02x = 170,566.58 × 72,612.88
4. Step 4: Simplify right side
   123,598.02x = 12,385,330,605.55
5. Step 5: Solve for x
   x = 12,385,330,605.55/123,598.02
6. Step 6: Final answer
   x = 100,206.55