Finding the Fourth Proportional to 99,675,040.93, 137,551,581.89 and 55,021,038.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,675,040.93 : 137,551,581.89 = 55,021,038.50 : x
2. Step 2: Convert to fraction form
   99,675,040.93/137,551,581.89 = 55,021,038.50/x
3. Step 3: Cross multiply
   99,675,040.93x = 137,551,581.89 × 55,021,038.50
4. Step 4: Simplify right side
   99,675,040.93x = 7,568,230,883,180,694
5. Step 5: Solve for x
   x = 7,568,230,883,180,694/99,675,040.93
6. Step 6: Final answer
   x = 75,929,047.16