Finding the Fourth Proportional to 105,594.72, 145,720.71 and 63,153.25

Step by Step Solution

1. Step 1: Write the proportion equation
   105,594.72 : 145,720.71 = 63,153.25 : x
2. Step 2: Convert to fraction form
   105,594.72/145,720.71 = 63,153.25/x
3. Step 3: Cross multiply
   105,594.72x = 145,720.71 × 63,153.25
4. Step 4: Simplify right side
   105,594.72x = 9,202,736,428.81
5. Step 5: Solve for x
   x = 9,202,736,428.81/105,594.72
6. Step 6: Final answer
   x = 87,151.48