Finding the Fourth Proportional to 72,034.59, 99,315.32 and 59,066.09

Step by Step Solution

1. Step 1: Write the proportion equation
   72,034.59 : 99,315.32 = 59,066.09 : x
2. Step 2: Convert to fraction form
   72,034.59/99,315.32 = 59,066.09/x
3. Step 3: Cross multiply
   72,034.59x = 99,315.32 × 59,066.09
4. Step 4: Simplify right side
   72,034.59x = 5,866,167,280.59
5. Step 5: Solve for x
   x = 5,866,167,280.59/72,034.59
6. Step 6: Final answer
   x = 81,435.42