Finding the Fourth Proportional to 111,784.15, 167,702.15 and 58,505.09

Step by Step Solution

1. Step 1: Write the proportion equation
   111,784.15 : 167,702.15 = 58,505.09 : x
2. Step 2: Convert to fraction form
   111,784.15/167,702.15 = 58,505.09/x
3. Step 3: Cross multiply
   111,784.15x = 167,702.15 × 58,505.09
4. Step 4: Simplify right side
   111,784.15x = 9,811,428,357.60
5. Step 5: Solve for x
   x = 9,811,428,357.60/111,784.15
6. Step 6: Final answer
   x = 87,771.19