Finding the Fourth Proportional to 99,418.76, 137,145.61 and 59,103.84

Step by Step Solution

1. Step 1: Write the proportion equation
   99,418.76 : 137,145.61 = 59,103.84 : x
2. Step 2: Convert to fraction form
   99,418.76/137,145.61 = 59,103.84/x
3. Step 3: Cross multiply
   99,418.76x = 137,145.61 × 59,103.84
4. Step 4: Simplify right side
   99,418.76x = 8,105,832,445.86
5. Step 5: Solve for x
   x = 8,105,832,445.86/99,418.76
6. Step 6: Final answer
   x = 81,532.22