Finding the Fourth Proportional to 70,061.13, 96,686.69 and 38,231.78

Step by Step Solution

1. Step 1: Write the proportion equation
   70,061.13 : 96,686.69 = 38,231.78 : x
2. Step 2: Convert to fraction form
   70,061.13/96,686.69 = 38,231.78/x
3. Step 3: Cross multiply
   70,061.13x = 96,686.69 × 38,231.78
4. Step 4: Simplify right side
   70,061.13x = 3,696,503,777.57
5. Step 5: Solve for x
   x = 3,696,503,777.57/70,061.13
6. Step 6: Final answer
   x = 52,761.12