Finding the Fourth Proportional to 82,200.21, 113,436.09 and 46,390.11

Step by Step Solution

1. Step 1: Write the proportion equation
   82,200.21 : 113,436.09 = 46,390.11 : x
2. Step 2: Convert to fraction form
   82,200.21/113,436.09 = 46,390.11/x
3. Step 3: Cross multiply
   82,200.21x = 113,436.09 × 46,390.11
4. Step 4: Simplify right side
   82,200.21x = 5,262,312,693.07
5. Step 5: Solve for x
   x = 5,262,312,693.07/82,200.21
6. Step 6: Final answer
   x = 64,018.24