Finding the Fourth Proportional to 72,816,945.85, 109,224,671.16 and 42,091,975.09

Step by Step Solution

1. Step 1: Write the proportion equation
   72,816,945.85 : 109,224,671.16 = 42,091,975.09 : x
2. Step 2: Convert to fraction form
   72,816,945.85/109,224,671.16 = 42,091,975.09/x
3. Step 3: Cross multiply
   72,816,945.85x = 109,224,671.16 × 42,091,975.09
4. Step 4: Simplify right side
   72,816,945.85x = 4,597,482,137,680,162
5. Step 5: Solve for x
   x = 4,597,482,137,680,162/72,816,945.85
6. Step 6: Final answer
   x = 63,137,530.47