Finding the Fourth Proportional to 13,870,109.82, 19,142,782.20 and 7,988,613.57

Step by Step Solution

1. Step 1: Write the proportion equation
   13,870,109.82 : 19,142,782.20 = 7,988,613.57 : x
2. Step 2: Convert to fraction form
   13,870,109.82/19,142,782.20 = 7,988,613.57/x
3. Step 3: Cross multiply
   13,870,109.82x = 19,142,782.20 × 7,988,613.57
4. Step 4: Simplify right side
   13,870,109.82x = 152,924,289,650,474.47
5. Step 5: Solve for x
   x = 152,924,289,650,474.47/13,870,109.82
6. Step 6: Final answer
   x = 11,025,456.30