Finding the Fourth Proportional to 72,150.95, 99,566.59 and 40,326.00

Step by Step Solution

1. Step 1: Write the proportion equation
   72,150.95 : 99,566.59 = 40,326.00 : x
2. Step 2: Convert to fraction form
   72,150.95/99,566.59 = 40,326.00/x
3. Step 3: Cross multiply
   72,150.95x = 99,566.59 × 40,326.00
4. Step 4: Simplify right side
   72,150.95x = 4,015,122,583.24
5. Step 5: Solve for x
   x = 4,015,122,583.24/72,150.95
6. Step 6: Final answer
   x = 55,648.92