Finding the Fourth Proportional to 83,575.81, 125,382.17 and 30,985.30

Step by Step Solution

1. Step 1: Write the proportion equation
   83,575.81 : 125,382.17 = 30,985.30 : x
2. Step 2: Convert to fraction form
   83,575.81/125,382.17 = 30,985.30/x
3. Step 3: Cross multiply
   83,575.81x = 125,382.17 × 30,985.30
4. Step 4: Simplify right side
   83,575.81x = 3,885,004,386.29
5. Step 5: Solve for x
   x = 3,885,004,386.29/83,575.81
6. Step 6: Final answer
   x = 46,484.79