Finding the Fourth Proportional to 85,074.71, 127,691.01 and 42,984.35

Step by Step Solution

1. Step 1: Write the proportion equation
   85,074.71 : 127,691.01 = 42,984.35 : x
2. Step 2: Convert to fraction form
   85,074.71/127,691.01 = 42,984.35/x
3. Step 3: Cross multiply
   85,074.71x = 127,691.01 × 42,984.35
4. Step 4: Simplify right side
   85,074.71x = 5,488,715,065.69
5. Step 5: Solve for x
   x = 5,488,715,065.69/85,074.71
6. Step 6: Final answer
   x = 64,516.41