Finding the Fourth Proportional to 70,978.49, 97,783.20 and 58,833.35

Step by Step Solution

1. Step 1: Write the proportion equation
   70,978.49 : 97,783.20 = 58,833.35 : x
2. Step 2: Convert to fraction form
   70,978.49/97,783.20 = 58,833.35/x
3. Step 3: Cross multiply
   70,978.49x = 97,783.20 × 58,833.35
4. Step 4: Simplify right side
   70,978.49x = 5,752,912,740.80
5. Step 5: Solve for x
   x = 5,752,912,740.80/70,978.49
6. Step 6: Final answer
   x = 81,051.50