Finding the Fourth Proportional to 87,105.39, 120,242.21 and 58,849.35

Step by Step Solution

1. Step 1: Write the proportion equation
   87,105.39 : 120,242.21 = 58,849.35 : x
2. Step 2: Convert to fraction form
   87,105.39/120,242.21 = 58,849.35/x
3. Step 3: Cross multiply
   87,105.39x = 120,242.21 × 58,849.35
4. Step 4: Simplify right side
   87,105.39x = 7,076,175,606.82
5. Step 5: Solve for x
   x = 7,076,175,606.82/87,105.39
6. Step 6: Final answer
   x = 81,236.94