Finding the Fourth Proportional to 144,085.48, 216,137.40 and 59,852.50

Step by Step Solution

1. Step 1: Write the proportion equation
   144,085.48 : 216,137.40 = 59,852.50 : x
2. Step 2: Convert to fraction form
   144,085.48/216,137.40 = 59,852.50/x
3. Step 3: Cross multiply
   144,085.48x = 216,137.40 × 59,852.50
4. Step 4: Simplify right side
   144,085.48x = 12,936,363,733.50
5. Step 5: Solve for x
   x = 12,936,363,733.50/144,085.48
6. Step 6: Final answer
   x = 89,782.56