Finding the Fourth Proportional to 13,483,789.56, 18,603,071.82 and 7,678,454.76

Step by Step Solution

1. Step 1: Write the proportion equation
   13,483,789.56 : 18,603,071.82 = 7,678,454.76 : x
2. Step 2: Convert to fraction form
   13,483,789.56/18,603,071.82 = 7,678,454.76/x
3. Step 3: Cross multiply
   13,483,789.56x = 18,603,071.82 × 7,678,454.76
4. Step 4: Simplify right side
   13,483,789.56x = 142,842,845,366,900.88
5. Step 5: Solve for x
   x = 142,842,845,366,900.88/13,483,789.56
6. Step 6: Final answer
   x = 10,593,672.11