Finding the Fourth Proportional to 78,150.21, 117,068.31 and 35,971.35

Step by Step Solution

1. Step 1: Write the proportion equation
   78,150.21 : 117,068.31 = 35,971.35 : x
2. Step 2: Convert to fraction form
   78,150.21/117,068.31 = 35,971.35/x
3. Step 3: Cross multiply
   78,150.21x = 117,068.31 × 35,971.35
4. Step 4: Simplify right side
   78,150.21x = 4,211,105,152.92
5. Step 5: Solve for x
   x = 4,211,105,152.92/78,150.21
6. Step 6: Final answer
   x = 53,884.76