Finding the Fourth Proportional to 12,499,220, 17,250,764.24 and 7,915,967.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,499,220 : 17,250,764.24 = 7,915,967.52 : x
2. Step 2: Convert to fraction form
   12,499,220/17,250,764.24 = 7,915,967.52/x
3. Step 3: Cross multiply
   12,499,220x = 17,250,764.24 × 7,915,967.52
4. Step 4: Simplify right side
   12,499,220x = 136,556,489,419,017.47
5. Step 5: Solve for x
   x = 136,556,489,419,017.47/12,499,220
6. Step 6: Final answer
   x = 10,925,200.89