Finding the Fourth Proportional to 7,878,185.42, 10,871,978.73 and 4,440,426.45

Step by Step Solution

1. Step 1: Write the proportion equation
   7,878,185.42 : 10,871,978.73 = 4,440,426.45 : x
2. Step 2: Convert to fraction form
   7,878,185.42/10,871,978.73 = 4,440,426.45/x
3. Step 3: Cross multiply
   7,878,185.42x = 10,871,978.73 × 4,440,426.45
4. Step 4: Simplify right side
   7,878,185.42x = 48,276,221,859,107.89
5. Step 5: Solve for x
   x = 48,276,221,859,107.89/7,878,185.42
6. Step 6: Final answer
   x = 6,127,835.20