Finding the Fourth Proportional to 117,499,054.96, 162,141,587.71 and 65,286,305.31

Step by Step Solution

1. Step 1: Write the proportion equation
   117,499,054.96 : 162,141,587.71 = 65,286,305.31 : x
2. Step 2: Convert to fraction form
   117,499,054.96/162,141,587.71 = 65,286,305.31/x
3. Step 3: Cross multiply
   117,499,054.96x = 162,141,587.71 × 65,286,305.31
4. Step 4: Simplify right side
   117,499,054.96x = 10,585,625,198,683,204
5. Step 5: Solve for x
   x = 10,585,625,198,683,204/117,499,054.96
6. Step 6: Final answer
   x = 90,091,151.82