Finding the Fourth Proportional to 83,687.12, 115,493.88 and 45,961.76

Step by Step Solution

1. Step 1: Write the proportion equation
   83,687.12 : 115,493.88 = 45,961.76 : x
2. Step 2: Convert to fraction form
   83,687.12/115,493.88 = 45,961.76/x
3. Step 3: Cross multiply
   83,687.12x = 115,493.88 × 45,961.76
4. Step 4: Simplify right side
   83,687.12x = 5,308,301,994.03
5. Step 5: Solve for x
   x = 5,308,301,994.03/83,687.12
6. Step 6: Final answer
   x = 63,430.33