Finding the Fourth Proportional to 12,858,056.32, 19,296,404.88 and 4,772,182.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,858,056.32 : 19,296,404.88 = 4,772,182.72 : x
2. Step 2: Convert to fraction form
   12,858,056.32/19,296,404.88 = 4,772,182.72/x
3. Step 3: Cross multiply
   12,858,056.32x = 19,296,404.88 × 4,772,182.72
4. Step 4: Simplify right side
   12,858,056.32x = 92,085,969,926,459.66
5. Step 5: Solve for x
   x = 92,085,969,926,459.66/12,858,056.32
6. Step 6: Final answer
   x = 7,161,733.28