Finding the Fourth Proportional to 152,413.31, 210,327.61 and 84,430.07

Step by Step Solution

1. Step 1: Write the proportion equation
   152,413.31 : 210,327.61 = 84,430.07 : x
2. Step 2: Convert to fraction form
   152,413.31/210,327.61 = 84,430.07/x
3. Step 3: Cross multiply
   152,413.31x = 210,327.61 × 84,430.07
4. Step 4: Simplify right side
   152,413.31x = 17,757,974,835.23
5. Step 5: Solve for x
   x = 17,757,974,835.23/152,413.31
6. Step 6: Final answer
   x = 116,511.97