Finding the Fourth Proportional to 111,462.08, 153,840.06 and 75,663.72

Step by Step Solution

1. Step 1: Write the proportion equation
   111,462.08 : 153,840.06 = 75,663.72 : x
2. Step 2: Convert to fraction form
   111,462.08/153,840.06 = 75,663.72/x
3. Step 3: Cross multiply
   111,462.08x = 153,840.06 × 75,663.72
4. Step 4: Simplify right side
   111,462.08x = 11,640,111,224.62
5. Step 5: Solve for x
   x = 11,640,111,224.62/111,462.08
6. Step 6: Final answer
   x = 104,431.14