Finding the Fourth Proportional to 85,719.64, 128,517.18 and 35,814.00

Step by Step Solution

1. Step 1: Write the proportion equation
   85,719.64 : 128,517.18 = 35,814.00 : x
2. Step 2: Convert to fraction form
   85,719.64/128,517.18 = 35,814.00/x
3. Step 3: Cross multiply
   85,719.64x = 128,517.18 × 35,814.00
4. Step 4: Simplify right side
   85,719.64x = 4,602,714,697.34
5. Step 5: Solve for x
   x = 4,602,714,697.34/85,719.64
6. Step 6: Final answer
   x = 53,694.99