Finding the Fourth Proportional to 72,816,946.85, 109,224,672.66 and 42,091,976.09

Step by Step Solution

1. Step 1: Write the proportion equation
   72,816,946.85 : 109,224,672.66 = 42,091,976.09 : x
2. Step 2: Convert to fraction form
   72,816,946.85/109,224,672.66 = 42,091,976.09/x
3. Step 3: Cross multiply
   72,816,946.85x = 109,224,672.66 × 42,091,976.09
4. Step 4: Simplify right side
   72,816,946.85x = 4,597,482,309,496,673
5. Step 5: Solve for x
   x = 4,597,482,309,496,673/72,816,946.85
6. Step 6: Final answer
   x = 63,137,531.97