Finding the Fourth Proportional to 56,429.00, 84,704.85 and 42,429.16

Step by Step Solution

1. Step 1: Write the proportion equation
   56,429.00 : 84,704.85 = 42,429.16 : x
2. Step 2: Convert to fraction form
   56,429.00/84,704.85 = 42,429.16/x
3. Step 3: Cross multiply
   56,429.00x = 84,704.85 × 42,429.16
4. Step 4: Simplify right side
   56,429.00x = 3,593,955,421.66
5. Step 5: Solve for x
   x = 3,593,955,421.66/56,429.00
6. Step 6: Final answer
   x = 63,689.87