Finding the Fourth Proportional to 9,900,213.12, 13,662,925.49 and 5,549,300.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,900,213.12 : 13,662,925.49 = 5,549,300.55 : x
2. Step 2: Convert to fraction form
   9,900,213.12/13,662,925.49 = 5,549,300.55/x
3. Step 3: Cross multiply
   9,900,213.12x = 13,662,925.49 × 5,549,300.55
4. Step 4: Simplify right side
   9,900,213.12x = 75,819,679,950,139.27
5. Step 5: Solve for x
   x = 75,819,679,950,139.27/9,900,213.12
6. Step 6: Final answer
   x = 7,658,388.67