Finding the Fourth Proportional to 52,870,307.75, 79,287,501.42 and 18,318,645.62

Step by Step Solution

1. Step 1: Write the proportion equation
   52,870,307.75 : 79,287,501.42 = 18,318,645.62 : x
2. Step 2: Convert to fraction form
   52,870,307.75/79,287,501.42 = 18,318,645.62/x
3. Step 3: Cross multiply
   52,870,307.75x = 79,287,501.42 × 18,318,645.62
4. Step 4: Simplify right side
   52,870,307.75x = 1,452,439,640,211,789.25
5. Step 5: Solve for x
   x = 1,452,439,640,211,789.25/52,870,307.75
6. Step 6: Final answer
   x = 27,471,745.53