Finding the Fourth Proportional to 111,111.75, 153,333 and 63,363.87

Step by Step Solution

1. Step 1: Write the proportion equation
   111,111.75 : 153,333 = 63,363.87 : x
2. Step 2: Convert to fraction form
   111,111.75/153,333 = 63,363.87/x
3. Step 3: Cross multiply
   111,111.75x = 153,333 × 63,363.87
4. Step 4: Simplify right side
   111,111.75x = 9,715,772,278.71
5. Step 5: Solve for x
   x = 9,715,772,278.71/111,111.75
6. Step 6: Final answer
   x = 87,441.45