Finding the Fourth Proportional to 112,080.31, 154,664.71 and 64,330.54

Step by Step Solution

1. Step 1: Write the proportion equation
   112,080.31 : 154,664.71 = 64,330.54 : x
2. Step 2: Convert to fraction form
   112,080.31/154,664.71 = 64,330.54/x
3. Step 3: Cross multiply
   112,080.31x = 154,664.71 × 64,330.54
4. Step 4: Simplify right side
   112,080.31x = 9,949,663,765.76
5. Step 5: Solve for x
   x = 9,949,663,765.76/112,080.31
6. Step 6: Final answer
   x = 88,772.63