Finding the Fourth Proportional to 111,907.85, 168,056.18 and 59,419.85

Step by Step Solution

1. Step 1: Write the proportion equation
   111,907.85 : 168,056.18 = 59,419.85 : x
2. Step 2: Convert to fraction form
   111,907.85/168,056.18 = 59,419.85/x
3. Step 3: Cross multiply
   111,907.85x = 168,056.18 × 59,419.85
4. Step 4: Simplify right side
   111,907.85x = 9,985,872,710.07
5. Step 5: Solve for x
   x = 9,985,872,710.07/111,907.85
6. Step 6: Final answer
   x = 89,233.00