Finding the Fourth Proportional to 69,870.06, 104,855.85 and 52,387.02

Step by Step Solution

1. Step 1: Write the proportion equation
   69,870.06 : 104,855.85 = 52,387.02 : x
2. Step 2: Convert to fraction form
   69,870.06/104,855.85 = 52,387.02/x
3. Step 3: Cross multiply
   69,870.06x = 104,855.85 × 52,387.02
4. Step 4: Simplify right side
   69,870.06x = 5,493,085,511.07
5. Step 5: Solve for x
   x = 5,493,085,511.07/69,870.06
6. Step 6: Final answer
   x = 78,618.59