Finding the Fourth Proportional to 144,152,271.32, 198,947,612.70 and 81,431,014.01

Step by Step Solution

1. Step 1: Write the proportion equation
   144,152,271.32 : 198,947,612.70 = 81,431,014.01 : x
2. Step 2: Convert to fraction form
   144,152,271.32/198,947,612.70 = 81,431,014.01/x
3. Step 3: Cross multiply
   144,152,271.32x = 198,947,612.70 × 81,431,014.01
4. Step 4: Simplify right side
   144,152,271.32x = 16,200,505,836,035,014
5. Step 5: Solve for x
   x = 16,200,505,836,035,014/144,152,271.32
6. Step 6: Final answer
   x = 112,384,672.74