Finding the Fourth Proportional to 112,659.10, 155,477 and 64,915.46

Step by Step Solution

1. Step 1: Write the proportion equation
   112,659.10 : 155,477 = 64,915.46 : x
2. Step 2: Convert to fraction form
   112,659.10/155,477 = 64,915.46/x
3. Step 3: Cross multiply
   112,659.10x = 155,477 × 64,915.46
4. Step 4: Simplify right side
   112,659.10x = 10,092,860,974.42
5. Step 5: Solve for x
   x = 10,092,860,974.42/112,659.10
6. Step 6: Final answer
   x = 89,587.62