Finding the Fourth Proportional to 91,590,683.69, 137,273,469.29 and 42,339,917.09

Step by Step Solution

1. Step 1: Write the proportion equation
   91,590,683.69 : 137,273,469.29 = 42,339,917.09 : x
2. Step 2: Convert to fraction form
   91,590,683.69/137,273,469.29 = 42,339,917.09/x
3. Step 3: Cross multiply
   91,590,683.69x = 137,273,469.29 × 42,339,917.09
4. Step 4: Simplify right side
   91,590,683.69x = 5,812,147,308,395,261
5. Step 5: Solve for x
   x = 5,812,147,308,395,261/91,590,683.69
6. Step 6: Final answer
   x = 63,457,843.90