Finding the Fourth Proportional to 91,943,413.08, 137,915,118.18 and 87,345,857.40

Step by Step Solution

1. Step 1: Write the proportion equation
   91,943,413.08 : 137,915,118.18 = 87,345,857.40 : x
2. Step 2: Convert to fraction form
   91,943,413.08/137,915,118.18 = 87,345,857.40/x
3. Step 3: Cross multiply
   91,943,413.08x = 137,915,118.18 × 87,345,857.40
4. Step 4: Simplify right side
   91,943,413.08x = 12,046,314,245,854,428
5. Step 5: Solve for x
   x = 12,046,314,245,854,428/91,943,413.08
6. Step 6: Final answer
   x = 131,018,784.73