Finding the Fourth Proportional to 13,152,196.31, 18,150,663.51 and 7,271,721.68

Step by Step Solution

1. Step 1: Write the proportion equation
   13,152,196.31 : 18,150,663.51 = 7,271,721.68 : x
2. Step 2: Convert to fraction form
   13,152,196.31/18,150,663.51 = 7,271,721.68/x
3. Step 3: Cross multiply
   13,152,196.31x = 18,150,663.51 × 7,271,721.68
4. Step 4: Simplify right side
   13,152,196.31x = 131,986,573,261,298.59
5. Step 5: Solve for x
   x = 131,986,573,261,298.59/13,152,196.31
6. Step 6: Final answer
   x = 10,035,325.67