Finding the Fourth Proportional to 10,941,792.60, 16,389,069.30 and 7,115,417.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,941,792.60 : 16,389,069.30 = 7,115,417.40 : x
2. Step 2: Convert to fraction form
   10,941,792.60/16,389,069.30 = 7,115,417.40/x
3. Step 3: Cross multiply
   10,941,792.60x = 16,389,069.30 × 7,115,417.40
4. Step 4: Simplify right side
   10,941,792.60x = 116,615,068,867,025.83
5. Step 5: Solve for x
   x = 116,615,068,867,025.83/10,941,792.60
6. Step 6: Final answer
   x = 10,657,766.34