Finding the Fourth Proportional to 163,166,061.15, 244,677,270.60 and 86,471,120.43

Step by Step Solution

1. Step 1: Write the proportion equation
   163,166,061.15 : 244,677,270.60 = 86,471,120.43 : x
2. Step 2: Convert to fraction form
   163,166,061.15/244,677,270.60 = 86,471,120.43/x
3. Step 3: Cross multiply
   163,166,061.15x = 244,677,270.60 × 86,471,120.43
4. Step 4: Simplify right side
   163,166,061.15x = 21,157,517,732,536,300
5. Step 5: Solve for x
   x = 21,157,517,732,536,300/163,166,061.15
6. Step 6: Final answer
   x = 129,668,618.48