Finding the Fourth Proportional to 6,870,931.20, 10,308,178.56 and 2,611,173.12

Step by Step Solution

1. Step 1: Write the proportion equation
   6,870,931.20 : 10,308,178.56 = 2,611,173.12 : x
2. Step 2: Convert to fraction form
   6,870,931.20/10,308,178.56 = 2,611,173.12/x
3. Step 3: Cross multiply
   6,870,931.20x = 10,308,178.56 × 2,611,173.12
4. Step 4: Simplify right side
   6,870,931.20x = 26,916,438,772,032.31
5. Step 5: Solve for x
   x = 26,916,438,772,032.31/6,870,931.20
6. Step 6: Final answer
   x = 3,917,436.81