Finding the Fourth Proportional to 83,396.32, 115,086.74 and 45,155.90

Step by Step Solution

1. Step 1: Write the proportion equation
   83,396.32 : 115,086.74 = 45,155.90 : x
2. Step 2: Convert to fraction form
   83,396.32/115,086.74 = 45,155.90/x
3. Step 3: Cross multiply
   83,396.32x = 115,086.74 × 45,155.90
4. Step 4: Simplify right side
   83,396.32x = 5,196,845,723.37
5. Step 5: Solve for x
   x = 5,196,845,723.37/83,396.32
6. Step 6: Final answer
   x = 62,315.05