Finding the Fourth Proportional to 99,354,905.55, 137,109,776.24 and 55,300,958.96

Step by Step Solution

1. Step 1: Write the proportion equation
   99,354,905.55 : 137,109,776.24 = 55,300,958.96 : x
2. Step 2: Convert to fraction form
   99,354,905.55/137,109,776.24 = 55,300,958.96/x
3. Step 3: Cross multiply
   99,354,905.55x = 137,109,776.24 × 55,300,958.96
4. Step 4: Simplify right side
   99,354,905.55x = 7,582,302,108,863,024
5. Step 5: Solve for x
   x = 7,582,302,108,863,024/99,354,905.55
6. Step 6: Final answer
   x = 76,315,327.03