Finding the Fourth Proportional to 57,856,926.12, 86,780,074.56 and 19,518,772.38

Step by Step Solution

1. Step 1: Write the proportion equation
   57,856,926.12 : 86,780,074.56 = 19,518,772.38 : x
2. Step 2: Convert to fraction form
   57,856,926.12/86,780,074.56 = 19,518,772.38/x
3. Step 3: Cross multiply
   57,856,926.12x = 86,780,074.56 × 19,518,772.38
4. Step 4: Simplify right side
   57,856,926.12x = 1,693,840,522,456,068.50
5. Step 5: Solve for x
   x = 1,693,840,522,456,068.50/57,856,926.12
6. Step 6: Final answer
   x = 29,276,365.62