Finding the Fourth Proportional to 91,314,348.78, 137,018,614.80 and 42,797,131.62

Step by Step Solution

1. Step 1: Write the proportion equation
   91,314,348.78 : 137,018,614.80 = 42,797,131.62 : x
2. Step 2: Convert to fraction form
   91,314,348.78/137,018,614.80 = 42,797,131.62/x
3. Step 3: Cross multiply
   91,314,348.78x = 137,018,614.80 × 42,797,131.62
4. Step 4: Simplify right side
   91,314,348.78x = 5,864,003,691,985,680
5. Step 5: Solve for x
   x = 5,864,003,691,985,680/91,314,348.78
6. Step 6: Final answer
   x = 64,217,768.30