Finding the Fourth Proportional to 13,362,271.72, 18,440,343.56 and 7,854,636.02

Step by Step Solution

1. Step 1: Write the proportion equation
   13,362,271.72 : 18,440,343.56 = 7,854,636.02 : x
2. Step 2: Convert to fraction form
   13,362,271.72/18,440,343.56 = 7,854,636.02/x
3. Step 3: Cross multiply
   13,362,271.72x = 18,440,343.56 × 7,854,636.02
4. Step 4: Simplify right side
   13,362,271.72x = 144,842,186,674,985.91
5. Step 5: Solve for x
   x = 144,842,186,674,985.91/13,362,271.72
6. Step 6: Final answer
   x = 10,839,637.88