Finding the Fourth Proportional to 90,005.70, 134,922.15 and 70,004.10

Step by Step Solution

1. Step 1: Write the proportion equation
   90,005.70 : 134,922.15 = 70,004.10 : x
2. Step 2: Convert to fraction form
   90,005.70/134,922.15 = 70,004.10/x
3. Step 3: Cross multiply
   90,005.70x = 134,922.15 × 70,004.10
4. Step 4: Simplify right side
   90,005.70x = 9,445,103,680.82
5. Step 5: Solve for x
   x = 9,445,103,680.82/90,005.70
6. Step 6: Final answer
   x = 104,938.95