Finding the Fourth Proportional to 146,013.59, 219,022.14 and 57,308.87

Step by Step Solution

1. Step 1: Write the proportion equation
   146,013.59 : 219,022.14 = 57,308.87 : x
2. Step 2: Convert to fraction form
   146,013.59/219,022.14 = 57,308.87/x
3. Step 3: Cross multiply
   146,013.59x = 219,022.14 × 57,308.87
4. Step 4: Simplify right side
   146,013.59x = 12,551,911,348.38
5. Step 5: Solve for x
   x = 12,551,911,348.38/146,013.59
6. Step 6: Final answer
   x = 85,963.99