Finding the Fourth Proportional to 13,856,692.08, 19,120,886.78 and 7,660,890.30

Step by Step Solution

1. Step 1: Write the proportion equation
   13,856,692.08 : 19,120,886.78 = 7,660,890.30 : x
2. Step 2: Convert to fraction form
   13,856,692.08/19,120,886.78 = 7,660,890.30/x
3. Step 3: Cross multiply
   13,856,692.08x = 19,120,886.78 × 7,660,890.30
4. Step 4: Simplify right side
   13,856,692.08x = 146,483,016,060,300.25
5. Step 5: Solve for x
   x = 146,483,016,060,300.25/13,856,692.08
6. Step 6: Final answer
   x = 10,571,283.19