Finding the Fourth Proportional to 110,783.72, 165,986.52 and 60,905.60

Step by Step Solution

1. Step 1: Write the proportion equation
   110,783.72 : 165,986.52 = 60,905.60 : x
2. Step 2: Convert to fraction form
   110,783.72/165,986.52 = 60,905.60/x
3. Step 3: Cross multiply
   110,783.72x = 165,986.52 × 60,905.60
4. Step 4: Simplify right side
   110,783.72x = 10,109,508,592.51
5. Step 5: Solve for x
   x = 10,109,508,592.51/110,783.72
6. Step 6: Final answer
   x = 91,254.46