Finding the Fourth Proportional to 118,142,025.93, 163,038,605.63 and 65,218,608.23

Step by Step Solution

1. Step 1: Write the proportion equation
   118,142,025.93 : 163,038,605.63 = 65,218,608.23 : x
2. Step 2: Convert to fraction form
   118,142,025.93/163,038,605.63 = 65,218,608.23/x
3. Step 3: Cross multiply
   118,142,025.93x = 163,038,605.63 × 65,218,608.23
4. Step 4: Simplify right side
   118,142,025.93x = 10,633,150,946,948,442
5. Step 5: Solve for x
   x = 10,633,150,946,948,442/118,142,025.93
6. Step 6: Final answer
   x = 90,003,120.09