Finding the Fourth Proportional to 111,111.30, 153,312.12 and 63,363.42

Step by Step Solution

1. Step 1: Write the proportion equation
   111,111.30 : 153,312.12 = 63,363.42 : x
2. Step 2: Convert to fraction form
   111,111.30/153,312.12 = 63,363.42/x
3. Step 3: Cross multiply
   111,111.30x = 153,312.12 × 63,363.42
4. Step 4: Simplify right side
   111,111.30x = 9,714,380,250.65
5. Step 5: Solve for x
   x = 9,714,380,250.65/111,111.30
6. Step 6: Final answer
   x = 87,429.27