Finding the Fourth Proportional to 111,746.72, 154,213.12 and 61,445.68

Step by Step Solution

1. Step 1: Write the proportion equation
   111,746.72 : 154,213.12 = 61,445.68 : x
2. Step 2: Convert to fraction form
   111,746.72/154,213.12 = 61,445.68/x
3. Step 3: Cross multiply
   111,746.72x = 154,213.12 × 61,445.68
4. Step 4: Simplify right side
   111,746.72x = 9,475,730,023.32
5. Step 5: Solve for x
   x = 9,475,730,023.32/111,746.72
6. Step 6: Final answer
   x = 84,796.49