Finding the Fourth Proportional to 7,172,415.95, 9,897,941.61 and 3,909,233.34

Step by Step Solution

1. Step 1: Write the proportion equation
   7,172,415.95 : 9,897,941.61 = 3,909,233.34 : x
2. Step 2: Convert to fraction form
   7,172,415.95/9,897,941.61 = 3,909,233.34/x
3. Step 3: Cross multiply
   7,172,415.95x = 9,897,941.61 × 3,909,233.34
4. Step 4: Simplify right side
   7,172,415.95x = 38,693,363,339,185.27
5. Step 5: Solve for x
   x = 38,693,363,339,185.27/7,172,415.95
6. Step 6: Final answer
   x = 5,394,746.15