Finding the Fourth Proportional to 12,431,659.02, 18,650,373.30 and 3,911,774.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,431,659.02 : 18,650,373.30 = 3,911,774.10 : x
2. Step 2: Convert to fraction form
   12,431,659.02/18,650,373.30 = 3,911,774.10/x
3. Step 3: Cross multiply
   12,431,659.02x = 18,650,373.30 × 3,911,774.10
4. Step 4: Simplify right side
   12,431,659.02x = 72,956,047,230,271.53
5. Step 5: Solve for x
   x = 72,956,047,230,271.53/12,431,659.02
6. Step 6: Final answer
   x = 5,868,568.88