Finding the Fourth Proportional to 9,786,728.04, 13,506,743.18 and 5,921,380.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,786,728.04 : 13,506,743.18 = 5,921,380.50 : x
2. Step 2: Convert to fraction form
   9,786,728.04/13,506,743.18 = 5,921,380.50/x
3. Step 3: Cross multiply
   9,786,728.04x = 13,506,743.18 × 5,921,380.50
4. Step 4: Simplify right side
   9,786,728.04x = 79,978,565,648,713.14
5. Step 5: Solve for x
   x = 79,978,565,648,713.14/9,786,728.04
6. Step 6: Final answer
   x = 8,172,145.52