Finding the Fourth Proportional to 111,564, 153,977.76 and 63,819.36

Step by Step Solution

1. Step 1: Write the proportion equation
   111,564 : 153,977.76 = 63,819.36 : x
2. Step 2: Convert to fraction form
   111,564/153,977.76 = 63,819.36/x
3. Step 3: Cross multiply
   111,564x = 153,977.76 × 63,819.36
4. Step 4: Simplify right side
   111,564x = 9,826,762,097.43
5. Step 5: Solve for x
   x = 9,826,762,097.43/111,564
6. Step 6: Final answer
   x = 88,081.84