Finding the Fourth Proportional to 111,069.69, 153,213.89 and 68,070.02

Step by Step Solution

1. Step 1: Write the proportion equation
   111,069.69 : 153,213.89 = 68,070.02 : x
2. Step 2: Convert to fraction form
   111,069.69/153,213.89 = 68,070.02/x
3. Step 3: Cross multiply
   111,069.69x = 153,213.89 × 68,070.02
4. Step 4: Simplify right side
   111,069.69x = 10,429,271,450.16
5. Step 5: Solve for x
   x = 10,429,271,450.16/111,069.69
6. Step 6: Final answer
   x = 93,898.45