Finding the Fourth Proportional to 30,854,870.76, 42,584,059.17 and 19,097,910.21

Step by Step Solution

1. Step 1: Write the proportion equation
   30,854,870.76 : 42,584,059.17 = 19,097,910.21 : x
2. Step 2: Convert to fraction form
   30,854,870.76/42,584,059.17 = 19,097,910.21/x
3. Step 3: Cross multiply
   30,854,870.76x = 42,584,059.17 × 19,097,910.21
4. Step 4: Simplify right side
   30,854,870.76x = 813,266,538,405,987.25
5. Step 5: Solve for x
   x = 813,266,538,405,987.25/30,854,870.76
6. Step 6: Final answer
   x = 26,357,800.84