Finding the Fourth Proportional to 111,466.12, 153,818.56 and 61,161.88

Step by Step Solution

1. Step 1: Write the proportion equation
   111,466.12 : 153,818.56 = 61,161.88 : x
2. Step 2: Convert to fraction form
   111,466.12/153,818.56 = 61,161.88/x
3. Step 3: Cross multiply
   111,466.12x = 153,818.56 × 61,161.88
4. Step 4: Simplify right side
   111,466.12x = 9,407,832,308.49
5. Step 5: Solve for x
   x = 9,407,832,308.49/111,466.12
6. Step 6: Final answer
   x = 84,400.82