Finding the Fourth Proportional to 112,155.78, 154,774.23 and 61,854.78

Step by Step Solution

1. Step 1: Write the proportion equation
   112,155.78 : 154,774.23 = 61,854.78 : x
2. Step 2: Convert to fraction form
   112,155.78/154,774.23 = 61,854.78/x
3. Step 3: Cross multiply
   112,155.78x = 154,774.23 × 61,854.78
4. Step 4: Simplify right side
   112,155.78x = 9,573,525,946.32
5. Step 5: Solve for x
   x = 9,573,525,946.32/112,155.78
6. Step 6: Final answer
   x = 85,359.18