Finding the Fourth Proportional to 118,133,298.76, 163,023,958.41 and 65,210,020.42

Step by Step Solution

1. Step 1: Write the proportion equation
   118,133,298.76 : 163,023,958.41 = 65,210,020.42 : x
2. Step 2: Convert to fraction form
   118,133,298.76/163,023,958.41 = 65,210,020.42/x
3. Step 3: Cross multiply
   118,133,298.76x = 163,023,958.41 × 65,210,020.42
4. Step 4: Simplify right side
   118,133,298.76x = 10,630,795,656,865,330
5. Step 5: Solve for x
   x = 10,630,795,656,865,330/118,133,298.76
6. Step 6: Final answer
   x = 89,989,831.56