Finding the Fourth Proportional to 72,308.53, 99,785.01 and 40,477.69

Step by Step Solution

1. Step 1: Write the proportion equation
   72,308.53 : 99,785.01 = 40,477.69 : x
2. Step 2: Convert to fraction form
   72,308.53/99,785.01 = 40,477.69/x
3. Step 3: Cross multiply
   72,308.53x = 99,785.01 × 40,477.69
4. Step 4: Simplify right side
   72,308.53x = 4,039,066,701.43
5. Step 5: Solve for x
   x = 4,039,066,701.43/72,308.53
6. Step 6: Final answer
   x = 55,858.79