Finding the Fourth Proportional to 70,402.78, 97,186.26 and 42,103

Step by Step Solution

1. Step 1: Write the proportion equation
   70,402.78 : 97,186.26 = 42,103 : x
2. Step 2: Convert to fraction form
   70,402.78/97,186.26 = 42,103/x
3. Step 3: Cross multiply
   70,402.78x = 97,186.26 × 42,103
4. Step 4: Simplify right side
   70,402.78x = 4,091,833,104.78
5. Step 5: Solve for x
   x = 4,091,833,104.78/70,402.78
6. Step 6: Final answer
   x = 58,120.33