Finding the Fourth Proportional to 108,915.93, 150,296.58 and 61,173.72

Step by Step Solution

1. Step 1: Write the proportion equation
   108,915.93 : 150,296.58 = 61,173.72 : x
2. Step 2: Convert to fraction form
   108,915.93/150,296.58 = 61,173.72/x
3. Step 3: Cross multiply
   108,915.93x = 150,296.58 × 61,173.72
4. Step 4: Simplify right side
   108,915.93x = 9,194,200,901.88
5. Step 5: Solve for x
   x = 9,194,200,901.88/108,915.93
6. Step 6: Final answer
   x = 84,415.58