Finding the Fourth Proportional to 106,957.72, 147,617.81 and 61,642.41

Step by Step Solution

1. Step 1: Write the proportion equation
   106,957.72 : 147,617.81 = 61,642.41 : x
2. Step 2: Convert to fraction form
   106,957.72/147,617.81 = 61,642.41/x
3. Step 3: Cross multiply
   106,957.72x = 147,617.81 × 61,642.41
4. Step 4: Simplify right side
   106,957.72x = 9,099,517,567.32
5. Step 5: Solve for x
   x = 9,099,517,567.32/106,957.72
6. Step 6: Final answer
   x = 85,075.84