Finding the Fourth Proportional to 9,219,411.60, 12,722,454.57 and 5,089,354.07

Step by Step Solution

1. Step 1: Write the proportion equation
   9,219,411.60 : 12,722,454.57 = 5,089,354.07 : x
2. Step 2: Convert to fraction form
   9,219,411.60/12,722,454.57 = 5,089,354.07/x
3. Step 3: Cross multiply
   9,219,411.60x = 12,722,454.57 × 5,089,354.07
4. Step 4: Simplify right side
   9,219,411.60x = 64,749,075,901,692.41
5. Step 5: Solve for x
   x = 64,749,075,901,692.41/9,219,411.60
6. Step 6: Final answer
   x = 7,023,124.55