Finding the Fourth Proportional to 172,639,507.52, 258,784,733.82 and 74,335,322.82

Step by Step Solution

1. Step 1: Write the proportion equation
   172,639,507.52 : 258,784,733.82 = 74,335,322.82 : x
2. Step 2: Convert to fraction form
   172,639,507.52/258,784,733.82 = 74,335,322.82/x
3. Step 3: Cross multiply
   172,639,507.52x = 258,784,733.82 × 74,335,322.82
4. Step 4: Simplify right side
   172,639,507.52x = 19,236,846,729,397,468
5. Step 5: Solve for x
   x = 19,236,846,729,397,468/172,639,507.52
6. Step 6: Final answer
   x = 111,427,835.99