Finding the Fourth Proportional to 139,005.57, 191,827.89 and 75,343.35

Step by Step Solution

1. Step 1: Write the proportion equation
   139,005.57 : 191,827.89 = 75,343.35 : x
2. Step 2: Convert to fraction form
   139,005.57/191,827.89 = 75,343.35/x
3. Step 3: Cross multiply
   139,005.57x = 191,827.89 × 75,343.35
4. Step 4: Simplify right side
   139,005.57x = 14,452,955,856.03
5. Step 5: Solve for x
   x = 14,452,955,856.03/139,005.57
6. Step 6: Final answer
   x = 103,973.93