Finding the Fourth Proportional to 19,201,636.10, 28,802,483.31 and 7,842,084.72

Step by Step Solution

1. Step 1: Write the proportion equation
   19,201,636.10 : 28,802,483.31 = 7,842,084.72 : x
2. Step 2: Convert to fraction form
   19,201,636.10/28,802,483.31 = 7,842,084.72/x
3. Step 3: Cross multiply
   19,201,636.10x = 28,802,483.31 × 7,842,084.72
4. Step 4: Simplify right side
   19,201,636.10x = 225,871,514,224,195.59
5. Step 5: Solve for x
   x = 225,871,514,224,195.59/19,201,636.10
6. Step 6: Final answer
   x = 11,763,138.99