Finding the Fourth Proportional to 12,128,419.15, 18,188,200.05 and 4,041,658.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,128,419.15 : 18,188,200.05 = 4,041,658.60 : x
2. Step 2: Convert to fraction form
   12,128,419.15/18,188,200.05 = 4,041,658.60/x
3. Step 3: Cross multiply
   12,128,419.15x = 18,188,200.05 × 4,041,658.60
4. Step 4: Simplify right side
   12,128,419.15x = 73,510,495,150,602.94
5. Step 5: Solve for x
   x = 73,510,495,150,602.94/12,128,419.15
6. Step 6: Final answer
   x = 6,061,012.09