Finding the Fourth Proportional to 146,260.90, 219,414.54 and 56,300.47

Step by Step Solution

1. Step 1: Write the proportion equation
   146,260.90 : 219,414.54 = 56,300.47 : x
2. Step 2: Convert to fraction form
   146,260.90/219,414.54 = 56,300.47/x
3. Step 3: Cross multiply
   146,260.90x = 219,414.54 × 56,300.47
4. Step 4: Simplify right side
   146,260.90x = 12,353,141,726.83
5. Step 5: Solve for x
   x = 12,353,141,726.83/146,260.90
6. Step 6: Final answer
   x = 84,459.63