Finding the Fourth Proportional to 112,156.84, 154,766.46 and 64,405.72

Step by Step Solution

1. Step 1: Write the proportion equation
   112,156.84 : 154,766.46 = 64,405.72 : x
2. Step 2: Convert to fraction form
   112,156.84/154,766.46 = 64,405.72/x
3. Step 3: Cross multiply
   112,156.84x = 154,766.46 × 64,405.72
4. Step 4: Simplify right side
   112,156.84x = 9,967,845,288.15
5. Step 5: Solve for x
   x = 9,967,845,288.15/112,156.84
6. Step 6: Final answer
   x = 88,874.16