Finding the Fourth Proportional to 10,692,242.80, 16,042,036.20 and 3,120,319.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,692,242.80 : 16,042,036.20 = 3,120,319.60 : x
2. Step 2: Convert to fraction form
   10,692,242.80/16,042,036.20 = 3,120,319.60/x
3. Step 3: Cross multiply
   10,692,242.80x = 16,042,036.20 × 3,120,319.60
4. Step 4: Simplify right side
   10,692,242.80x = 50,056,279,978,769.52
5. Step 5: Solve for x
   x = 50,056,279,978,769.52/10,692,242.80
6. Step 6: Final answer
   x = 4,681,551.00