Finding the Fourth Proportional to 99,156,615.35, 136,839,452.15 and 55,105,470.86

Step by Step Solution

1. Step 1: Write the proportion equation
   99,156,615.35 : 136,839,452.15 = 55,105,470.86 : x
2. Step 2: Convert to fraction form
   99,156,615.35/136,839,452.15 = 55,105,470.86/x
3. Step 3: Cross multiply
   99,156,615.35x = 136,839,452.15 × 55,105,470.86
4. Step 4: Simplify right side
   99,156,615.35x = 7,540,602,442,403,756
5. Step 5: Solve for x
   x = 7,540,602,442,403,756/99,156,615.35
6. Step 6: Final answer
   x = 76,047,396.50