Finding the Fourth Proportional to 111,464.18, 153,820.55 and 63,718.59

Step by Step Solution

1. Step 1: Write the proportion equation
   111,464.18 : 153,820.55 = 63,718.59 : x
2. Step 2: Convert to fraction form
   111,464.18/153,820.55 = 63,718.59/x
3. Step 3: Cross multiply
   111,464.18x = 153,820.55 × 63,718.59
4. Step 4: Simplify right side
   111,464.18x = 9,801,228,559.02
5. Step 5: Solve for x
   x = 9,801,228,559.02/111,464.18
6. Step 6: Final answer
   x = 87,931.65