Finding the Fourth Proportional to 35,428.17, 52,864.69 and 31,704.79

Step by Step Solution

1. Step 1: Write the proportion equation
   35,428.17 : 52,864.69 = 31,704.79 : x
2. Step 2: Convert to fraction form
   35,428.17/52,864.69 = 31,704.79/x
3. Step 3: Cross multiply
   35,428.17x = 52,864.69 × 31,704.79
4. Step 4: Simplify right side
   35,428.17x = 1,676,063,894.87
5. Step 5: Solve for x
   x = 1,676,063,894.87/35,428.17
6. Step 6: Final answer
   x = 47,308.79