Finding the Fourth Proportional to 111,856.10, 167,978.55 and 59,368.10

Step by Step Solution

1. Step 1: Write the proportion equation
   111,856.10 : 167,978.55 = 59,368.10 : x
2. Step 2: Convert to fraction form
   111,856.10/167,978.55 = 59,368.10/x
3. Step 3: Cross multiply
   111,856.10x = 167,978.55 × 59,368.10
4. Step 4: Simplify right side
   111,856.10x = 9,972,567,354.26
5. Step 5: Solve for x
   x = 9,972,567,354.26/111,856.10
6. Step 6: Final answer
   x = 89,155.33