Finding the Fourth Proportional to 118,562,535.09, 163,612,784.37 and 65,641,601.35

Step by Step Solution

1. Step 1: Write the proportion equation
   118,562,535.09 : 163,612,784.37 = 65,641,601.35 : x
2. Step 2: Convert to fraction form
   118,562,535.09/163,612,784.37 = 65,641,601.35/x
3. Step 3: Cross multiply
   118,562,535.09x = 163,612,784.37 × 65,641,601.35
4. Step 4: Simplify right side
   118,562,535.09x = 10,739,805,167,379,052
5. Step 5: Solve for x
   x = 10,739,805,167,379,052/118,562,535.09
6. Step 6: Final answer
   x = 90,583,464.32