Finding the Fourth Proportional to 72,389,711.14, 99,897,097.37 and 53,887,591.51

Step by Step Solution

1. Step 1: Write the proportion equation
   72,389,711.14 : 99,897,097.37 = 53,887,591.51 : x
2. Step 2: Convert to fraction form
   72,389,711.14/99,897,097.37 = 53,887,591.51/x
3. Step 3: Cross multiply
   72,389,711.14x = 99,897,097.37 × 53,887,591.51
4. Step 4: Simplify right side
   72,389,711.14x = 5,383,213,975,590,074
5. Step 5: Solve for x
   x = 5,383,213,975,590,074/72,389,711.14
6. Step 6: Final answer
   x = 74,364,352.21