Finding the Fourth Proportional to 70,858.76, 97,770.76 and 53,858.48

Step by Step Solution

1. Step 1: Write the proportion equation
   70,858.76 : 97,770.76 = 53,858.48 : x
2. Step 2: Convert to fraction form
   70,858.76/97,770.76 = 53,858.48/x
3. Step 3: Cross multiply
   70,858.76x = 97,770.76 × 53,858.48
4. Step 4: Simplify right side
   70,858.76x = 5,265,784,522.04
5. Step 5: Solve for x
   x = 5,265,784,522.04/70,858.76
6. Step 6: Final answer
   x = 74,313.81