Finding the Fourth Proportional to 89,007.88, 122,820.01 and 70,904.71

Step by Step Solution

1. Step 1: Write the proportion equation
   89,007.88 : 122,820.01 = 70,904.71 : x
2. Step 2: Convert to fraction form
   89,007.88/122,820.01 = 70,904.71/x
3. Step 3: Cross multiply
   89,007.88x = 122,820.01 × 70,904.71
4. Step 4: Simplify right side
   89,007.88x = 8,708,516,972.83
5. Step 5: Solve for x
   x = 8,708,516,972.83/89,007.88
6. Step 6: Final answer
   x = 97,839.84