Finding the Fourth Proportional to 89,459.42, 123,242.94 and 76,670.94

Step by Step Solution

1. Step 1: Write the proportion equation
   89,459.42 : 123,242.94 = 76,670.94 : x
2. Step 2: Convert to fraction form
   89,459.42/123,242.94 = 76,670.94/x
3. Step 3: Cross multiply
   89,459.42x = 123,242.94 × 76,670.94
4. Step 4: Simplify right side
   89,459.42x = 9,449,152,058.16
5. Step 5: Solve for x
   x = 9,449,152,058.16/89,459.42
6. Step 6: Final answer
   x = 105,625.01