Finding the Fourth Proportional to 144,354.61, 216,513.41 and 60,099.06

Step by Step Solution

1. Step 1: Write the proportion equation
   144,354.61 : 216,513.41 = 60,099.06 : x
2. Step 2: Convert to fraction form
   144,354.61/216,513.41 = 60,099.06/x
3. Step 3: Cross multiply
   144,354.61x = 216,513.41 × 60,099.06
4. Step 4: Simplify right side
   144,354.61x = 13,012,252,929.82
5. Step 5: Solve for x
   x = 13,012,252,929.82/144,354.61
6. Step 6: Final answer
   x = 90,140.89