Finding the Fourth Proportional to 78,507, 117,600.12 and 65,316.96

Step by Step Solution

1. Step 1: Write the proportion equation
   78,507 : 117,600.12 = 65,316.96 : x
2. Step 2: Convert to fraction form
   78,507/117,600.12 = 65,316.96/x
3. Step 3: Cross multiply
   78,507x = 117,600.12 × 65,316.96
4. Step 4: Simplify right side
   78,507x = 7,681,282,334.04
5. Step 5: Solve for x
   x = 7,681,282,334.04/78,507
6. Step 6: Final answer
   x = 97,842.01