Finding the Fourth Proportional to 6,355,931.47, 9,538,096.25 and 2,990,400.91

Step by Step Solution

1. Step 1: Write the proportion equation
   6,355,931.47 : 9,538,096.25 = 2,990,400.91 : x
2. Step 2: Convert to fraction form
   6,355,931.47/9,538,096.25 = 2,990,400.91/x
3. Step 3: Cross multiply
   6,355,931.47x = 9,538,096.25 × 2,990,400.91
4. Step 4: Simplify right side
   6,355,931.47x = 28,522,731,705,667.59
5. Step 5: Solve for x
   x = 28,522,731,705,667.59/6,355,931.47
6. Step 6: Final answer
   x = 4,487,576.97