Finding the Fourth Proportional to 139,094.55, 191,958.59 and 77,840.22

Step by Step Solution

1. Step 1: Write the proportion equation
   139,094.55 : 191,958.59 = 77,840.22 : x
2. Step 2: Convert to fraction form
   139,094.55/191,958.59 = 77,840.22/x
3. Step 3: Cross multiply
   139,094.55x = 191,958.59 × 77,840.22
4. Step 4: Simplify right side
   139,094.55x = 14,942,098,487.29
5. Step 5: Solve for x
   x = 14,942,098,487.29/139,094.55
6. Step 6: Final answer
   x = 107,424.04