Finding the Fourth Proportional to 120,790.82, 181,200.64 and 58,416.50

Step by Step Solution

1. Step 1: Write the proportion equation
   120,790.82 : 181,200.64 = 58,416.50 : x
2. Step 2: Convert to fraction form
   120,790.82/181,200.64 = 58,416.50/x
3. Step 3: Cross multiply
   120,790.82x = 181,200.64 × 58,416.50
4. Step 4: Simplify right side
   120,790.82x = 10,585,107,186.56
5. Step 5: Solve for x
   x = 10,585,107,186.56/120,790.82
6. Step 6: Final answer
   x = 87,631.72