Finding the Fourth Proportional to 10,902,892.78, 16,344,440.53 and 5,439,658.54

Step by Step Solution

1. Step 1: Write the proportion equation
   10,902,892.78 : 16,344,440.53 = 5,439,658.54 : x
2. Step 2: Convert to fraction form
   10,902,892.78/16,344,440.53 = 5,439,658.54/x
3. Step 3: Cross multiply
   10,902,892.78x = 16,344,440.53 × 5,439,658.54
4. Step 4: Simplify right side
   10,902,892.78x = 88,908,175,510,536.62
5. Step 5: Solve for x
   x = 88,908,175,510,536.62/10,902,892.78
6. Step 6: Final answer
   x = 8,154,549.19