Finding the Fourth Proportional to 111,526.56, 166,939.92 and 58,776.12

Step by Step Solution

1. Step 1: Write the proportion equation
   111,526.56 : 166,939.92 = 58,776.12 : x
2. Step 2: Convert to fraction form
   111,526.56/166,939.92 = 58,776.12/x
3. Step 3: Cross multiply
   111,526.56x = 166,939.92 × 58,776.12
4. Step 4: Simplify right side
   111,526.56x = 9,812,080,770.71
5. Step 5: Solve for x
   x = 9,812,080,770.71/111,526.56
6. Step 6: Final answer
   x = 87,979.77