Finding the Fourth Proportional to 105,004.04, 144,916.67 and 64,192.05

Step by Step Solution

1. Step 1: Write the proportion equation
   105,004.04 : 144,916.67 = 64,192.05 : x
2. Step 2: Convert to fraction form
   105,004.04/144,916.67 = 64,192.05/x
3. Step 3: Cross multiply
   105,004.04x = 144,916.67 × 64,192.05
4. Step 4: Simplify right side
   105,004.04x = 9,302,498,488.77
5. Step 5: Solve for x
   x = 9,302,498,488.77/105,004.04
6. Step 6: Final answer
   x = 88,591.82