Finding the Fourth Proportional to 111,410.34, 153,765.91 and 66,113.30

Step by Step Solution

1. Step 1: Write the proportion equation
   111,410.34 : 153,765.91 = 66,113.30 : x
2. Step 2: Convert to fraction form
   111,410.34/153,765.91 = 66,113.30/x
3. Step 3: Cross multiply
   111,410.34x = 153,765.91 × 66,113.30
4. Step 4: Simplify right side
   111,410.34x = 10,165,971,339.73
5. Step 5: Solve for x
   x = 10,165,971,339.73/111,410.34
6. Step 6: Final answer
   x = 91,248.01