Finding the Fourth Proportional to 64,111.74, 88,469.56 and 35,431.06

Step by Step Solution

1. Step 1: Write the proportion equation
   64,111.74 : 88,469.56 = 35,431.06 : x
2. Step 2: Convert to fraction form
   64,111.74/88,469.56 = 35,431.06/x
3. Step 3: Cross multiply
   64,111.74x = 88,469.56 × 35,431.06
4. Step 4: Simplify right side
   64,111.74x = 3,134,570,288.53
5. Step 5: Solve for x
   x = 3,134,570,288.53/64,111.74
6. Step 6: Final answer
   x = 48,892.30