Finding the Fourth Proportional to 39,860,474.82, 55,007,454.42 and 21,525,758.70

Step by Step Solution

1. Step 1: Write the proportion equation
   39,860,474.82 : 55,007,454.42 = 21,525,758.70 : x
2. Step 2: Convert to fraction form
   39,860,474.82/55,007,454.42 = 21,525,758.70/x
3. Step 3: Cross multiply
   39,860,474.82x = 55,007,454.42 × 21,525,758.70
4. Step 4: Simplify right side
   39,860,474.82x = 1,184,077,190,546,168.50
5. Step 5: Solve for x
   x = 1,184,077,190,546,168.50/39,860,474.82
6. Step 6: Final answer
   x = 29,705,546.56