Finding the Fourth Proportional to 61,981, 85,523.20 and 35,117.96

Step by Step Solution

1. Step 1: Write the proportion equation
   61,981 : 85,523.20 = 35,117.96 : x
2. Step 2: Convert to fraction form
   61,981/85,523.20 = 35,117.96/x
3. Step 3: Cross multiply
   61,981x = 85,523.20 × 35,117.96
4. Step 4: Simplify right side
   61,981x = 3,003,400,316.67
5. Step 5: Solve for x
   x = 3,003,400,316.67/61,981
6. Step 6: Final answer
   x = 48,456.79