Finding the Fourth Proportional to 112,155.84, 154,765.08 and 64,404.72

Step by Step Solution

1. Step 1: Write the proportion equation
   112,155.84 : 154,765.08 = 64,404.72 : x
2. Step 2: Convert to fraction form
   112,155.84/154,765.08 = 64,404.72/x
3. Step 3: Cross multiply
   112,155.84x = 154,765.08 × 64,404.72
4. Step 4: Simplify right side
   112,155.84x = 9,967,601,643.18
5. Step 5: Solve for x
   x = 9,967,601,643.18/112,155.84
6. Step 6: Final answer
   x = 88,872.78