Finding the Fourth Proportional to 146,139.10, 219,087.15 and 61,963.90

Step by Step Solution

1. Step 1: Write the proportion equation
   146,139.10 : 219,087.15 = 61,963.90 : x
2. Step 2: Convert to fraction form
   146,139.10/219,087.15 = 61,963.90/x
3. Step 3: Cross multiply
   146,139.10x = 219,087.15 × 61,963.90
4. Step 4: Simplify right side
   146,139.10x = 13,575,494,253.89
5. Step 5: Solve for x
   x = 13,575,494,253.89/146,139.10
6. Step 6: Final answer
   x = 92,894.33