Finding the Fourth Proportional to 139,062.29, 191,904.59 and 75,398.99

Step by Step Solution

1. Step 1: Write the proportion equation
   139,062.29 : 191,904.59 = 75,398.99 : x
2. Step 2: Convert to fraction form
   139,062.29/191,904.59 = 75,398.99/x
3. Step 3: Cross multiply
   139,062.29x = 191,904.59 × 75,398.99
4. Step 4: Simplify right side
   139,062.29x = 14,469,411,491.34
5. Step 5: Solve for x
   x = 14,469,411,491.34/139,062.29
6. Step 6: Final answer
   x = 104,049.86