Finding the Fourth Proportional to 72,146,725.63, 99,563,756.83 and 39,108,072.02

Step by Step Solution

1. Step 1: Write the proportion equation
   72,146,725.63 : 99,563,756.83 = 39,108,072.02 : x
2. Step 2: Convert to fraction form
   72,146,725.63/99,563,756.83 = 39,108,072.02/x
3. Step 3: Cross multiply
   72,146,725.63x = 99,563,756.83 × 39,108,072.02
4. Step 4: Simplify right side
   72,146,725.63x = 3,893,746,572,093,818
5. Step 5: Solve for x
   x = 3,893,746,572,093,818/72,146,725.63
6. Step 6: Final answer
   x = 53,969,830.76