Finding the Fourth Proportional to 99,955.32, 137,934.39 and 54,634.91

Step by Step Solution

1. Step 1: Write the proportion equation
   99,955.32 : 137,934.39 = 54,634.91 : x
2. Step 2: Convert to fraction form
   99,955.32/137,934.39 = 54,634.91/x
3. Step 3: Cross multiply
   99,955.32x = 137,934.39 × 54,634.91
4. Step 4: Simplify right side
   99,955.32x = 7,536,032,498.76
5. Step 5: Solve for x
   x = 7,536,032,498.76/99,955.32
6. Step 6: Final answer
   x = 75,394.01