Finding the Fourth Proportional to 70,404.78, 97,189.02 and 42,105

Step by Step Solution

1. Step 1: Write the proportion equation
   70,404.78 : 97,189.02 = 42,105 : x
2. Step 2: Convert to fraction form
   70,404.78/97,189.02 = 42,105/x
3. Step 3: Cross multiply
   70,404.78x = 97,189.02 × 42,105
4. Step 4: Simplify right side
   70,404.78x = 4,092,143,687.10
5. Step 5: Solve for x
   x = 4,092,143,687.10/70,404.78
6. Step 6: Final answer
   x = 58,123.09