Finding the Fourth Proportional to 70,458.78, 97,263.54 and 42,159

Step by Step Solution

1. Step 1: Write the proportion equation
   70,458.78 : 97,263.54 = 42,159 : x
2. Step 2: Convert to fraction form
   70,458.78/97,263.54 = 42,159/x
3. Step 3: Cross multiply
   70,458.78x = 97,263.54 × 42,159
4. Step 4: Simplify right side
   70,458.78x = 4,100,533,582.86
5. Step 5: Solve for x
   x = 4,100,533,582.86/70,458.78
6. Step 6: Final answer
   x = 58,197.62