Finding the Fourth Proportional to 28,099,300.17, 42,154,966.53 and 8,404,973.79

Step by Step Solution

1. Step 1: Write the proportion equation
   28,099,300.17 : 42,154,966.53 = 8,404,973.79 : x
2. Step 2: Convert to fraction form
   28,099,300.17/42,154,966.53 = 8,404,973.79/x
3. Step 3: Cross multiply
   28,099,300.17x = 42,154,966.53 × 8,404,973.79
4. Step 4: Simplify right side
   28,099,300.17x = 354,311,388,802,977.25
5. Step 5: Solve for x
   x = 354,311,388,802,977.25/28,099,300.17
6. Step 6: Final answer
   x = 12,609,260.25