Finding the Fourth Proportional to 86,196.98, 129,018.44 and 46,115.96

Step by Step Solution

1. Step 1: Write the proportion equation
   86,196.98 : 129,018.44 = 46,115.96 : x
2. Step 2: Convert to fraction form
   86,196.98/129,018.44 = 46,115.96/x
3. Step 3: Cross multiply
   86,196.98x = 129,018.44 × 46,115.96
4. Step 4: Simplify right side
   86,196.98x = 5,949,808,342.63
5. Step 5: Solve for x
   x = 5,949,808,342.63/86,196.98
6. Step 6: Final answer
   x = 69,025.72