Finding the Fourth Proportional to 105,761, 145,947.51 and 60,436.10

Step by Step Solution

1. Step 1: Write the proportion equation
   105,761 : 145,947.51 = 60,436.10 : x
2. Step 2: Convert to fraction form
   105,761/145,947.51 = 60,436.10/x
3. Step 3: Cross multiply
   105,761x = 145,947.51 × 60,436.10
4. Step 4: Simplify right side
   105,761x = 8,820,498,309.11
5. Step 5: Solve for x
   x = 8,820,498,309.11/105,761
6. Step 6: Final answer
   x = 83,400.29