Finding the Fourth Proportional to 72,300.64, 99,773.04 and 40,468

Step by Step Solution

1. Step 1: Write the proportion equation
   72,300.64 : 99,773.04 = 40,468 : x
2. Step 2: Convert to fraction form
   72,300.64/99,773.04 = 40,468/x
3. Step 3: Cross multiply
   72,300.64x = 99,773.04 × 40,468
4. Step 4: Simplify right side
   72,300.64x = 4,037,615,382.72
5. Step 5: Solve for x
   x = 4,037,615,382.72/72,300.64
6. Step 6: Final answer
   x = 55,844.81