Finding the Fourth Proportional to 118,562,559.90, 163,612,818.56 and 65,641,626.14

Step by Step Solution

1. Step 1: Write the proportion equation
   118,562,559.90 : 163,612,818.56 = 65,641,626.14 : x
2. Step 2: Convert to fraction form
   118,562,559.90/163,612,818.56 = 65,641,626.14/x
3. Step 3: Cross multiply
   118,562,559.90x = 163,612,818.56 × 65,641,626.14
4. Step 4: Simplify right side
   118,562,559.90x = 10,739,811,467,298,966
5. Step 5: Solve for x
   x = 10,739,811,467,298,966/118,562,559.90
6. Step 6: Final answer
   x = 90,583,498.50