Finding the Fourth Proportional to 2,492,619,748.80, 3,421,802,574.24 and 2,139,582,837.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,492,619,748.80 : 3,421,802,574.24 = 2,139,582,837.12 : x
2. Step 2: Convert to fraction form
   2,492,619,748.80/3,421,802,574.24 = 2,139,582,837.12/x
3. Step 3: Cross multiply
   2,492,619,748.80x = 3,421,802,574.24 × 2,139,582,837.12
4. Step 4: Simplify right side
   2,492,619,748.80x = 7,321,230,059,856,937,984
5. Step 5: Solve for x
   x = 7,321,230,059,856,937,984/2,492,619,748.80
6. Step 6: Final answer
   x = 2,937,162,823.72