Finding the Fourth Proportional to 99,354,781.58, 137,109,604.73 and 55,300,835.30

Step by Step Solution

1. Step 1: Write the proportion equation
   99,354,781.58 : 137,109,604.73 = 55,300,835.30 : x
2. Step 2: Convert to fraction form
   99,354,781.58/137,109,604.73 = 55,300,835.30/x
3. Step 3: Cross multiply
   99,354,781.58x = 137,109,604.73 × 55,300,835.30
4. Step 4: Simplify right side
   99,354,781.58x = 7,582,275,668,259,779
5. Step 5: Solve for x
   x = 7,582,275,668,259,779/99,354,781.58
6. Step 6: Final answer
   x = 76,315,156.13