Finding the Fourth Proportional to 83,931.72, 115,822.32 and 48,096.78

Step by Step Solution

1. Step 1: Write the proportion equation
   83,931.72 : 115,822.32 = 48,096.78 : x
2. Step 2: Convert to fraction form
   83,931.72/115,822.32 = 48,096.78/x
3. Step 3: Cross multiply
   83,931.72x = 115,822.32 × 48,096.78
4. Step 4: Simplify right side
   83,931.72x = 5,570,680,644.13
5. Step 5: Solve for x
   x = 5,570,680,644.13/83,931.72
6. Step 6: Final answer
   x = 66,371.58