Finding the Fourth Proportional to 111,288.63, 153,631.50 and 63,532.74

Step by Step Solution

1. Step 1: Write the proportion equation
   111,288.63 : 153,631.50 = 63,532.74 : x
2. Step 2: Convert to fraction form
   111,288.63/153,631.50 = 63,532.74/x
3. Step 3: Cross multiply
   111,288.63x = 153,631.50 × 63,532.74
4. Step 4: Simplify right side
   111,288.63x = 9,760,630,145.31
5. Step 5: Solve for x
   x = 9,760,630,145.31/111,288.63
6. Step 6: Final answer
   x = 87,705.55