Finding the Fourth Proportional to 72,307.73, 99,783.69 and 40,476.62

Step by Step Solution

1. Step 1: Write the proportion equation
   72,307.73 : 99,783.69 = 40,476.62 : x
2. Step 2: Convert to fraction form
   72,307.73/99,783.69 = 40,476.62/x
3. Step 3: Cross multiply
   72,307.73x = 99,783.69 × 40,476.62
4. Step 4: Simplify right side
   72,307.73x = 4,038,906,502.33
5. Step 5: Solve for x
   x = 4,038,906,502.33/72,307.73
6. Step 6: Final answer
   x = 55,857.19