Finding the Fourth Proportional to 118,760.48, 163,892.40 and 65,047.76

Step by Step Solution

1. Step 1: Write the proportion equation
   118,760.48 : 163,892.40 = 65,047.76 : x
2. Step 2: Convert to fraction form
   118,760.48/163,892.40 = 65,047.76/x
3. Step 3: Cross multiply
   118,760.48x = 163,892.40 × 65,047.76
4. Step 4: Simplify right side
   118,760.48x = 10,660,833,501.02
5. Step 5: Solve for x
   x = 10,660,833,501.02/118,760.48
6. Step 6: Final answer
   x = 89,767.52