Finding the Fourth Proportional to 89,718,554.88, 123,834,640.42 and 58,434,558.71

Step by Step Solution

1. Step 1: Write the proportion equation
   89,718,554.88 : 123,834,640.42 = 58,434,558.71 : x
2. Step 2: Convert to fraction form
   89,718,554.88/123,834,640.42 = 58,434,558.71/x
3. Step 3: Cross multiply
   89,718,554.88x = 123,834,640.42 × 58,434,558.71
4. Step 4: Simplify right side
   89,718,554.88x = 7,236,222,565,408,099
5. Step 5: Solve for x
   x = 7,236,222,565,408,099/89,718,554.88
6. Step 6: Final answer
   x = 80,654,693.73