Finding the Fourth Proportional to 105,759, 145,947.42 and 61,047

Step by Step Solution

1. Step 1: Write the proportion equation
   105,759 : 145,947.42 = 61,047 : x
2. Step 2: Convert to fraction form
   105,759/145,947.42 = 61,047/x
3. Step 3: Cross multiply
   105,759x = 145,947.42 × 61,047
4. Step 4: Simplify right side
   105,759x = 8,909,652,148.74
5. Step 5: Solve for x
   x = 8,909,652,148.74/105,759
6. Step 6: Final answer
   x = 84,244.86