Finding the Fourth Proportional to 70,969,609.72, 97,914,005.58 and 57,894,265.72

Step by Step Solution

1. Step 1: Write the proportion equation
   70,969,609.72 : 97,914,005.58 = 57,894,265.72 : x
2. Step 2: Convert to fraction form
   70,969,609.72/97,914,005.58 = 57,894,265.72/x
3. Step 3: Cross multiply
   70,969,609.72x = 97,914,005.58 × 57,894,265.72
4. Step 4: Simplify right side
   70,969,609.72x = 5,668,659,456,758,082
5. Step 5: Solve for x
   x = 5,668,659,456,758,082/70,969,609.72
6. Step 6: Final answer
   x = 79,874,462.87